17 comments/ 181838 views/ 67 favorites Wife's Sister is Back for More By: megatron3000 The first installment detailed, after initial reluctance, the hours of incredible sex I had had with my wife's smoking hot sister, Jillian, during her brief stay with us while her folks were out of town. As I mentioned previously, she had moved back in with her parents after she broke up with her longtime boyfriend; he had consistently and continuously mistreated her emotionally and sexually for quite some time before she ended it. She stayed with us during that time because she didn't want to be in the house alone for two weeks so soon after her issues with her ex. As I described, I was the one to whom she turned to help make herself emotionally whole again, and to help her be able to trust men again. What she didn't fully know (and hopefully never would) was some of the history of my attraction to her. She was an object of my lust for many years, pretty much since I first started dating her sister. My wife is and was beautiful, but Jillian always had that little something extra; the higher degree of sexiness, her body a work of art, a more provocative wardrobe, and flirtatious air. She was young back then, only 18. She was your typical immature 18 year old, but damn was she hot. While I love my wife and wouldn't trade her for anyone, Jillian just has had that extra "holy shit I need to fuck her right now" magnetism ever since I met her. When my wife and I started dating, we were still in college. When home from college, my wife (and her sister) lived with her parents. My wife continued to live there for her first year AFTER college up until we got married. During that span, I slept over their house a handful of times (no, not with my wife; her parents clearly didn't allow that under their roof). This usually occurred at times when I was there at night during a heavy snowstorm in which there was no reasonable chance of driving home that night. A few of these situations occurred when Jillian was away at college, leaving her bedroom available. Mys helpfully offered to let me sleep in there rather than on the uncomfortable couch. I was not going to argue. On a couple occasions, I was lucky enough for her to have been home recently enough to still have some fresh panties in the hamper. Clearly the only logical thing to do was to wrap those silky panties around my hard rod, using them to stroke myself. I would then come into them, and put them back into the hamper. Of course I was a little nervous they would be discovered soiled with my man juice before washing, but I didn't care at the time; I felt that rubbing that fabric (which had recently been nestled against her pussy slit and in her ass crack) against my manhood was worth the risk, and I couldn't resist. I even stole a couple samples to keep for myself from her lingerie collection, and would put them on and wear them to bed from time to time, and of course use them to masturbate often. No they certainly didn't fit, but I managed, and the slight discomfort was worth the premium quality jerkoff sessions that resulted. In general I never had any impulses to wear women's clothes, but I made an exception for Jillian's panties, and only in private. Merely having them touching my skin got me hard most times. When using their shower, I would use Jillian's soap and shampoo, and even use her razor to shave my privates; shaft, balls and all (before cumming on the blades). I normally just trimmed fairly close, and very rarely shaved my genitals bald, but I wasn't about to pass up these chances to use her razor. Of course I rinsed it thoroughly, but the mere thought of her using the razor on her long luxurious legs, underarms, and pussy after I had used it and jizzed on it produced some more great self-induced orgasms. As I said last time, over the years this violent lust faded a bit as I fell in love with my wife, got engaged, and got married. I began to see Jillian more as a real sister, and regarded and cared for her as such. However as we know, that insatiable lust never disappeared entirely. And it even took on a bit of a new excitement under the surface, as fucking her NOW wouldn't just be fucking some hot chick (as was the case in the past). It would now also be taboo, and almost a form of incest. During the rest of that two week stay she spent with us, we were able to get in a couple more quick fucking sessions while my wife wasn't around, but nothing like our original encounters as detailed in the first story. Each time I pleased her, her mood and demeanor improved. It had a cumulative effect. I didn't feel right about everything, not even close. But it seemed that I had helped her out a lot, so I was glad. My wife even commented that she was glad it appeared that her sister and I were getting along so well. Her and I had clashed at times in the past back when both of us were younger and less mature. And it is true that Jillian and I had built a great relationship (prior to any sexual activity). If my wife only knew what new level we had recently taken that relationship to. For a while after that we didn't talk much about what had happened. Things sort of went back to normal. Once or twice in a moment of privacy she'd give me a kiss or grope my balls, but after a few months, not even that. After that Jillian and I still had a very good relationship, but not a sexual one. I still felt guilty obviously, but neither of us told my wife anything. Who knows what she'd do. The consolation was that Jillian apparently continued to be doing much better after our magic week; her confidence was soaring in her job and her personal life, and her outlook was positive. She dated a couple guys here and there, but nothing became serious, which appeared to discourage her, but she remained upbeat. And in the meantime I was secretly happy that she didn't get intimate with these men. In a way I now thought of her as mine even though it was ridiculous, and I already had her sister. If things ended here, never to happen again, I don't think I would have minded. I knew what we had done was wrong in several ways, and every time we would potentially do it in the future could only make things worse. It was definitely better if we didn't renew our sexual relationship; I knew that, and she probably knew that. I was content. But several months after our first fling, I had another chance to fuck my sister. The three of us were driving up to the mountains for a weekend ski trip. There was supposed to be four of us; Jillian had been dating a guy for a little over a month at that time. We had met him a couple times already, but this was meant to be the time for my wife and I to really get to know the new guy that was courting her. However earlier that week she had walked in on him banging an ex girlfriend. He said the reason he had done it was because she was too slow to put out, and he was annoyed that he had only reached second base after several weeks. So that was the end of that. No room for old fashioned mindsets anymore I suppose. The drive was a few hours long. We were driving up on a Friday night after work. Jillian sat in the front seat with me because she was prone to car sickness. My wife sat in the back, and ended up falling asleep after about ½ hour. She had had a long week with work. So Jillian and I chatted about mundane things, until eventually she started telling me about her most recent boyfriend. The dude sounded like a real tool box. I had only met him twice. I didn't like him. But then, I never initially like anybody that someone I care about is dating, almost as a rule. Jillian eventually admitted that she hadn't had sex since months ago when she and I had last gotten it on. Despite myself, this triggered a half-erection. I fidgeted in my seat, and looked back quickly to make sure my wife was still asleep. She was, very lightly snoring. "I still just haven't been able to trust anybody enough. And with this last guy, it seems like that was justified," she said with a half-hearted smile. She sighed. "You're still the only one that has really made love to me and really made me feel special for as long as I can remember, possibly ever." My face flushed a little bit. I was now rocking a full-on burgeoning hardon. I said nonchalantly, "Aw man, that's too bad. I'm glad I could help I guess, you really weren't yourself for awhile there." "Yeah," she replied. "You're the best. My sis doesn't know how lucky she is. And that just doesn't mean sex. Even before any of that you were one of my favorite people. Such a great guy." I again shifted uncomfortably. 'Right,' I thought, a great guy who cheated on his wife with her sister. Much to my chagrin, I looked down to see quite a bulge below my seatbelt. "Yeah, sis," I said, "I'm sorry." We addressed each other as "sis" and "bro" often, somewhat playfully, even though we obviously weren't actually brother/sister. She continued, "But now I'm starting to get a little depressed again. I know it hasn't been that long, but I'm starting to worry again especially after this last guy dicked me over that I'm not gonna find anyone. Can you clone yourself?" She looked over at me expectantly. "Heh," I chuckled. "Sorry sis. I don't know what to tell ya; hang in there..." She looked down at my crotch, and in the moonlight there was now a very good chance she was aware of my state of arousal. I couldn't help it. The entire time she was talking about this topic, the memories of our time together had come flooding back. I was picturing her luscious naked breasts in front of my face. Pulling down her panties down her smooth legs, to her knees, down to her calves and ankles, then off completely. Then spreading those perfect legs, and guiding the top of my rock solid rod to the glistening entrance of her smooth beautiful pussy... 'NO' I said to myself. 'Stop this.' "Looks like somebody wants to help me out again," she said, as she continued to gaze at my erection as it strained against my jeans. She reached over and put her hand on it. I fidgeted again, and glanced in the rearview mirror to see my wife still sound asleep. She clasped it and started stroking my cock through my pants. I jammed the brake and swerved, and then resumed course. This jolted my wife awake. "What's going on?" she asked. "Nothing," I lied quickly, "There was a badger in the road; I avoided it." A badger??? 'Are you kidding me,' I thought to myself, 'A badger???? That's the best you could come up with you moron?' "Oh, that's good," she said. Jillian stifled a chuckle, but had removed her hand from my crotch. 'Crisis averted,' I thought. But much to my chagrin, my wife fell right back asleep, and again began her very light snoring. In no time at all, Jillian's hand was back on my boner. Dammit. If Jillian was gonna come at me with all she had right now I wasn't sure I could resist. As has been established, when it came to Jillian I was a weak man. I had spurned passes made by attractive women in the past, some of which may have objectively been even more attractive than Jillian. And it was never even all that difficult. My wife was obviously too important to me. But with Jillian it was different. The fact that she was family should have made it easier to resist. But that had the opposite effect. I already loved her (albeit in a different way), and she was the forbidden fruit. I couldn't control myself. "Jillian, we shouldn't do this again. You know it. That was a one time thing, and I thought we understood that it wouldn't continue," I said, quite unconvincingly. Before I was even finished with this sentence she had my fly unzipped and my cock out. She began stroking it slowly. "Jillian," I protested, "what we did back then was really amazing. But how can we let it continue? It's not right. And I thought you had sorted through your shit, and were gonna be okay now." "I am," she said, "but it's not enough. Ever since that week, I've wanted to be with you again non-stop. I think about you every time I masturbate, and I've so badly wanted you inside me ever since then. You're the only man that has ever really made me feel special and loved, and I need to feel that again." "Sis," I addressed her in this manner to see if it would get her to stop her stroking; it didn't. "Are you sure this isn't the problem? You want to be with me, which causes issues in your other relationships?" "I don't think that's it. If I could find somebody even close to how good you are there would be no problem. But there aren't many like that. I'd almost rather be alone than settle for less." A look of sadness crossed her face. "Don't you love me?" "Jillian you know I do, but this is ridiculous," I countered. She was still stroking my dick slowly. "We can't do this." As soon as those words had left MY lips, the head of my cock was between HER lips. She circled the tip with her tongue before taking the whole thing into her mouth and down her throat. I gasped, and any strand of protest that I was still holding onto was stripped away. I glanced up in the mirror. My wife was still asleep. "What if she wakes up?" I managed. She mumbled something around my dick. Holy hell, she was so good at this. I was already almost ready to explode. It only took a couple more minutes; I struggled to maintain control of the car as I went over the edge, and began filling her warm mouth with a hot load of cum. She eagerly swallowed all of it before reluctantly pulling off, and putting my wet dick away. My wife stirred in the back seat. "I have to go to the bathroom," she said. "When can we stop?" "There's a gas station a couple miles up," I said. My wife couldn't see the look of guilt on my face. Her eyes were still closed. We had been unobserved, luckily. It started sinking in now, the insanity of what had just taken place. My sister had just given me a very enjoyable blow job with my wife literally 2 feet away from us. I mean, it was great. And I hadn't had a blow job in quite awhile. I got to fuck my wife one or twice a week, most weeks, but blow jobs were very rare these days. But the audacity of Jillian to pull my dick out with her sister sitting RIGHT THERE was amazing. I pulled into the gas station, head spinning. My wife quickly jumped out of the car to get to the rest room. Jillian and I, in a leisurely manner, followed her. When my wife was out of earshot, I said, "Oh c'mon sis, we can't be doing that." Jillian said, "I think it's a bit late for that, bro... now all I'm gonna be thinking about all weekend is making love to you." She threw her arms around my neck and kissed me as I tried to turn my head away. "I'm so wet right now, and I need you inside me." With that, I was rock hard again. Son of a bitch. I was a weak man. It seemed that no matter what I did now, the little head would be taking charge this weekend. "Okay...," I said. We heard the toilet flush. Jillian leaned in for another quick kiss, and I was able to grab a handful of her perfect ass. We broke the embrace just before the door opened, and my wife came out. Jillian went in. Still looking groggy, my wife smiled, and headed back for the car. "Is it unlocked?" she asked. "Yeah," I said, a million miles away. She walked back around the corner to the car, and I heard the door open and close. I heard Jillian flush the toilet, and then heard her using the sink. The door opened. She poked her head out glanced both ways to make sure the coast was clear, then grabbed me by the collar and pulled me inside, closing the door behind us. She pushed me against the door and pressed her body up against mine, forcefully kissing me. I kissed her back. What else was I gonna do? In reality there was plenty I could have or should have done. But none of those things came to mind at that time, nothing other than putting my dick inside my "sis". "We need to be quick," she said breathlessly. "My sister will suspect something." She pulled my dick out again and immediately started sucking on it. While doing this she undid her belt and pulled her pants and underwear down to her knees. As always, her cunt was shaved absolutely smooth, and it was absolutely soaked, to the point that it was nearly dripping. That was it. I had to get in there. I turned her around and bent her over the sink. I rubbed my dick head along her slit getting it wet. I ran it along her ass crack. I caressed her tight smooth ass and hips. I wasted no more time. I inserted the entire seven inch length of my rod into her hot pussy with one long smooth stroke. Wow, she was already so wet! This was something I had never done before... fucking in a filthy rest stop bathroom. And this was a somewhat grungy one at that. In the moment, this only turned me on even more. As I started fucking my sister with long deliberate strokes, I almost chuckled when I looked over at the stall and saw a glory hole. 'Maybe next time,' I thought. 'No time for that now.' She was moaning softly, a climax already close at hand. She was now pushing her ass back into me in sync with my thrusting motions. I cupped her breasts through her jacket, frustrated at their current inaccessibility. I loved those large perky tits. I leaned in, turned her head, and kissed her again. Fuck, she was so fucking hot. I grabbed her shapely hips and picked up speed, slamming my cock into her as deep as I could. After a few more hard thrusts, we came together. I was seeing stars as she shuddered in the throes of orgasm, while I was shooting another sizeable load of my warm love juice deep inside her smoking hot body. We had both been so turned on that this had only taken a few minutes; possibly less time than it took you to read this. We straightened up quickly, and got back to the car to find my wife had fallen asleep again. We got back under way. We had about another hour to go. As we drove, Jillian smiled at me, and I let my hand fall onto her knee. We sat like that in silence the rest of the ride. We finally arrived at our destination. A friend of ours owned a cabin here, and we got permission to stay there for the weekend. It was a bit off the beaten path, but not far from a major downhill ski area. There were also trails for cross country skiing right there in the area. I carried our bags inside and looked around. It was pretty small, with one single floor. There were two small bedrooms, a sitting area, and a small kitchen. Perhaps the best part though, was the deck out back which included a hot tub, and a nice view overlooking the snowy mountainside. I had been looking forward to this, as it promised a chance to see Jillian in all her glory in her bathing suit. However now, if things continued the way there were going, I would probably be seeing her naked this weekend anyway, rendering the swimsuit less interesting by comparison. As my wife used the bathroom, Jillian whispered to me, "Sneak out of bed once she's sleeping later. Come see me." "I don't know, I'm pretty tired from the drive. Plus c'mon; we're really gonna continue this?" She shrugged and grinned, "I'll be waiting." I built a fire, and then the three of us sat around and had a little wine and made idle chit chat. My wife and I sat on the couch, my arm around her. Jillian sat on the easy chair across from us. After an hour or so we were all pretty tired, so we retired to our rooms. I lied down and fell asleep before my wife had even finished washing up. A couple hours later, I was jarred half awake by movement in the bed. I squinted in the low light to see what appeared to be Jillian, naked, climbing on top of me. My shorts were already off somehow, leaving me naked as well. 'C'mon, not this again,' I thought to myself groggily. A replay of the first time Jillian and I had had sex. I couldn't believe she was doing this again. We were going to get caught! Her wet pussy was grinding against my halfway limp cock. Now I was fully awake. I struggled and I glanced around furiously... my wife wasn't in the bed next to me. What the... Wife's Sister is Back for More "What's wrong?" I looked again at the face in front of me... and... whew... this was definitely my wife, and not Jillian. "Oh..." I said. "Nothing, nothing, you just startled me." She smiled, and then whispered, "I couldn't sleep." She resumed grinding her moist slit against my rod, which was now almost completely hard. Little did she know, there was undoubtedly still remnants of dried pussy juice and cum on my genitals from my earlier rest stop bathroom quickie. I idly thought that I should have taken a shower that night, but I hadn't felt like it. I grabbed one of the tits dangling in my face, and then pulled her to me, kissing my wife passionately. As I did this, she reached down and guided my rock hard cock to the entrance of her wet cunt. She slowly lowered herself onto my manhood until I was buried to the hilt. A quiet moan escaped her lips. I palmed her nice ass as she began to ride me. Her ass had some more bulk to it than Jillian's, which was by no means a bad thing. I played with her nipples. Her tits were slightly smaller than Jillian's, and sagged slightly more. But they were still very nice by any objective measure. She still had a wonderful figure, and it was not her fault that her little sister happened to look like a fucking swimsuit model. I tried to get Jillian out of my mind, but when I closed my eyes I kept imagining that it was Jillian, straddling me, impaled on my long hard pole, gracefully sliding up and down my hard shaft repeatedly. We carried on like that for several minutes. My wife's breathing quickened as she picked up the pace. The increased stimulation brought me close... and suddenly I was exploding inside of her at the same moment that she began convulsing in a violent orgasm of her own. I sighed, and pulled her in for a warm kiss. My wife was a perfectly adequate lover. And I was a bad man for lusting after (and actually fucking) her sister all these times. Deep down I still hoped that there was some way she would be okay with it if she ever found out. If she understood how vulnerable Jillian had been feeling the first time she came to me. If her knowing that I had thought it was actually HER, the first time I fucked Jillian.... That it had been Jillian acting on her own in what could almost be described as a rape. Would that make any difference? In reality, that was unlikely. I thought about what I had done today. I had fucked my sister, and then fucked my wife only a few hours later. And in my infinite madness, even RIGHT NOW I was thinking about fucking her sister... and considering ways that the two of us may be able to get time alone in the next two days to make this happen. She would undoubtedly kill me if she knew all of this. Apparently this had been what my wife needed to get some rest. She fell soundly asleep beside me, arm draped across my chest. I, however, was wide awake, considering what I had done. For a moment I even considered sneaking out to go see if Jillian was awake. I quickly dismissed that idea. I had to figure out what I was gonna do. What seemed like an eternity went by before I finally calmed down and fell back asleep. The next morning, the three of us got an early start to make it to the ski area. We had a grand old time for most of the day. We were all pretty good skiers, and everything went smoothly. No injuries, even when I tried going off a couple of the jumps and landed awkwardly. We made it back to the cabin in early evening. It was completely dark by now. "I'm gonna take a shower," my wife said. "Me too," added Jillian. "Okay," I said. "Any interest in the hot tub tonight?" They both nodded. "Okay, I'll get it up and running. By the time we all shower and eat it should be all warmed up and ready." "Sounds good," my wife said, and she headed to the bedroom. As soon as she was out of sight, Jillian walked over to me and gave me a kiss on the cheek. She whispered in my ear, "Wait till you see me in my bathing suit. I've been working out more lately, and I look better than ever." This got the attention of my cock, and it started growing in my pants. Better than ever? She already looked like a goddess the first time I had seen her naked. If she looked even better now, and so much as TOUCHED my penis, I might have a hard time preventing a premature 'incident'. I gulped. "Okay, sis..." She planted a wet kiss on my lips, and our tongues met. She brought one hand down to her waist and grabbed a hold of my stiffening rod through my pants. We heard the bedroom door swing open, and we parted just in time. My wife walked from bedroom to bathroom and started preparing for her shower. Jillian gave me another quick kiss on the cheek, and then walked to her bedroom to undress. I debated going in there to help her undress. But no, I felt grimy and kind of sore. My wife took fast showers and would be finished in only a few minutes. I went outside to start firing up the hot tub. When I was done, I jerked off quickly and shot my cum into a pile of snow next to the side of the cabin. It was cold outside, but I was all hot and bothered by Jillian's teasing. I went back inside. Jillian had just finished her shower. My wife was in the kitchen preparing a light dinner for the three of us. They were both very health conscious and hated eating out. They were afraid restaurant food was too fattening for them. Not that either of them really had much to worry about. I went to take my shower. 'Just like old times,' I thought to myself, as I used Jillian's soap and shampoo, and also her razor to shave my privates. When I was finished with that, as was standard, I once again masturbated, cumming all over Jillian's girly pink razor. I rinsed it and put it back. I figured that this 'double header' of masturbation might help quiet my hormones; maybe prevent me from doing anything against my better judgment later that night. But who was I kidding. What I really hoped was simply that these two jerkoff sessions would allow me to last longer if I got the chance to have sex with my sister later on. I nearly hated myself for this, but I couldn't help it. I nearly hated Jillian too, for putting me in this position. SHE was the initiator in all these cases. But knowledge of that detail I'm sure wouldn't matter much to my wife if she ever found out. But I loved Jillian too... as a sister... but now our sexual relationship had made things a little confusing to say the least. But the bottom line was, the big head was entirely impotent. By contrast, the little head was anything but, and was large and in charge (both literally and figuratively), and doing ALL the thinking from here on out. We ate our dinner and drank some wine in front of the fireplace. We talked and talked. After we'd all had a few, the conversation turned to Jillian and her most recent failed relationship. Jillian got a little bit emotional, talking about how she had felt better for awhile, but that more recently she had again been a little depressed. I went into the kitchen to grab another bottle of wine. As I returned, Jillian was saying to her sister, "You got so lucky. You found an amazing guy, while get stuck with all the losers." I refilled all three of our glasses, then I went over and sat down in between them on the couch. Previously I had been in the easy chair while the two of them shared the couch. I put an arm around each of them, "Hey now," I said half jokingly (but unbeknownst to my wife... half serious), "there's plenty of me to go around." I kissed my wife, and then Jillian on the forehead. My wife frowned, and slapped me on the arm. But she seemed to have taken it as a joke as she was now smiling. Probably a good thing. We talked some more, and drank some more wine. Both girls, especially my wife, were now relatively intoxicated. "Hey," Jillian said, "Wanna go check out the hot tub?" We all changed into our bathing suits and reconvened out on the deck. Boy was it cold out here. Probably right around freezing. I tested the bubbling water with my foot, and then slowly lowered myself in. "Perfect," I said. I had been so cold, I almost forgot to check out the women's bikini-clad bodies. They both looked great. And Jillian hadn't been kidding. She looked even trimmer than before, but still had really nice curves. Her skimpy bathing suit barely restrained her big round tits. I gulped and almost began drooling. My eyes traced their way down to her flat stomach. I could almost see the slight outline of abs there now. Some men didn't like it when women had abs, but I find it sexy as long as it's subtle. My wife used to in her younger days and I loved it. Her legs looked better than ever, even as they broke out in goose bumps in the chilly night air. As always she had a perfect tan even in winter, and her shapely legs looked even more scrumptious now that a little bit of the minor amount of pudginess that had been there before had been replaced with muscle. Before, she could pass for a decent bikini model. Now she looked like a full blown fitness model. She was right. She had never looked better. My cock was hard. "Hey, eyes over here tough guy," my wife said, grinning. She had noticed me checking out her sister, but didn't seem to mind too much. My wife was no slouch either, as I've said. I regarded her nice rack, her ALMOST flat stomach, and her attractive curvy hips which were slightly wider than Jillian. She was hot. I had done well. "Hey, I was just looking at both of you. You're both gorgeous," I said, as they lowered themselves slowly into the hot bubbly water. Jillian gave me a quick, concealed seductive smile. We chatted some more. We continued drinking; we had brought another bottle out there with us, and had dispensed with the glasses. We were now just passing the bottle around. My wife sidled up close to me and kissed me, with Jillian sitting right there. She was now rather drunk. "You know what would be fun?" she said. "Let's all get naked. I always wanted to sit naked in a hot tub. I couldn't believe what I was hearing. "Really, with your sister here?" "Let's ALL get naked," she repeated. "We'll stay in the water, we can't really see each other under water. I don't care if you see Jillian's boobs, I'm sure you've seen plenty of boobs before." "Well hey what if Jillian's not comfortable with this?" No sooner had I finished speaking that Jillian tossed both the top and bottom of her bikini out onto the deck, smiling brightly. She was rather drunk as well. Between the deck lamp and the moonlight, I had a GREAT view of those mesmerizing breasts before she lowered them back under the water level. I fought the urge to reach over and grab one. Maybe even slide my thick sausage in between them. "HEY, eyes over here!" my wife said for the second time that night. While I had been staring at Jillian, my wife had removed her own bathing suit and tossed it over the edge of the tub. My wife then grabbed the back of my head and shoved my face into her cleavage. Not a bad place for my face to be. She untied my bathing suit, and I pulled it down and kicked it off. It floated to the top. Jillian grabbed it, and threw it aside. "Hey," my wife said, "don't touch my husband's pants!" She let go of me and lunged across the tub into Jillian's arms. The two of them started wrestling playfully, both of them giggling. I couldn't believe what I was seeing. Two hot chicks wrestling naked in a hot tub. One of them my wife, the other her beautiful sister. Blood continued to rush to my penis, which had now reached full capacity. The two continued playfully pushing and shoving. Breasts were bouncing everywhere. I was entranced. Jillian lost her balance and fell on top of me. My penis jabbed her lower back. She didn't immediately move to get up. My wife, laughing harder than ever, jumped on top of us, pinning us down. This was so fucking hot. I reached down and shifted the girls' weight on top of me. This was partially to shift them to a more comfortable position, but I had a great idea on the spur of the moment. As Jillian settled back down onto me, I reached down and pushed the top of my cock into her under-water pussy. A surprised shriek escaped Jillian's lips. My wife, smiling ear to ear (and oblivious to what was happening underwater), tried to pull Jillian off of me. I went with her momentum, and pushed them both across to the other side, now pinning my wife under both of us. In the midst of that motion, I was able to discreetly pump my cock in and out of Jillian's smooth wet snatch a couple times. Unfortunately there was no way full blown fucking would go unnoticed by my wife. She pushed back, burying my rod balls deep in Jillian, but then as they both fell to the side, my dick unfortunately slipped out of her hot cunt. After a couple more playful shoves, the girls calmed down, so it appeared that the party may be over. Until, that is, my wife started pawing at her sister's tits. "Damn, Jill," she said. "Your boobs are still so perky." Mine sag so much. Jillian replied, "No way, yours are so nice. And mine have weird nipples." I had no clue what she was talking about since the two of them appeared to have nearly identical nipples. My wife turned to me, "Do you still like my boobs?" I nodded. "Are Jill's better?" "I don't know," I said, "they all look good to me." My wife grabbed my hands and put them on her chest. "You promise you like them? Hers aren't better?" I smiled and shrugged. Now, amazingly, while keeping my right hand on her breast, she took my left wrist and thrust my hand onto Jillian's left tit. "Feel hers. Are you sure mine are still good? If I didn't get release soon, I was going to have horrific bout of blue balls to deal with. Things had moved quickly. First I was naked in the hot tub with them. Then my cock had "accidentally" slipped into my sis's hot pussy, and now I had a hold of one of her breasts WITH MY WIFE'S CONSENT. "Uh, no they're great, I mean yes... well no... I mean, what was the question exactly?" I stammered. "Feel her boobs... Jillian, you okay with that?" my wife asked. Jillian smiled and nodded, "Oh yeah, definitely. I'm happy to have a man I actually LIKE grabbing my tits." I thought that statement might stop my wife in her tracks, but she was unfazed. "Here..." she now took my other hand off of her own chest, and thrust BOTH of my hands onto BOTH of Jillian's tits. "Hers are so nice. Feel." I slowly began to rub her perky D breasts. "Yeah," I said, "they're nice. But I don't know, I might like yours better still. You both have great boobs." My wife giggled, and threw her arms around my neck and hugged me. Regrettably this dislodged my hands from Jillian's tits. Unfortunately, that was about it for the night, it seemed. We were all tired, and as I said Jillian and my wife were drunk, AND tired. I was feeling quite intoxicated myself. They were both so drunk in fact that they both just went right to bed. What a disappointment. I had even double checked my sleeping wife. I rubbed her breasts and even slipped a couple fingers into her pussy, rubbing her clit. But she was out cold, with no chance for me to try and fuck her, much to my chagrin. I snuck over to Jillian's room. I needed to fuck one of them, badly. I had tried my wife first, but she was unavailable. 'Her own fault,' I told myself. But when I snuck into the other bedroom and closed the door behind me, I found Jillian out cold as well. I gently shook her shoulder to wake her up but she barely stirred. I pulled the covers back and pulled her underwear down a bit. I gave her smooth slit a little kiss and lick, the sweet scent taking a hold of me. She stirred again. Nothing. I pulled her panties all the way down her luxurious legs, rubbing my hands on them unnecessarily much in the process. Damn she had such silky smooth skin. I wanted to be touching her all the time. Now all she had on was her t-shirt. No, this is not what you're thinking. I don't roll that way. I wasn't going to rape my sister while she was unconscious. But I wasn't above pushing her a little farther before giving up. I threw the covers completely aside, kneeled between her legs, and spread them apart. I began to lick her clit. Maybe this would get her attention. It seemed to be working. She stirred again, and let out a sigh. Emboldened, I edged closer to her, and rubbed the head of my cock against her now-wet clit. Her eyes were still closed, and she had barely moved, but I heard her whisper, "Ohhh, I love you, bro. Fuck me, please. Fuck me now. Make love to me. I need this so badly." I tentatively pushed just the tip against her pussy. I looked up at her to make sure she had really given me permission, and that I wasn't hearing things. The head of my dick now out of sight, between her pussy lips, she nodded and smiled, "Mmm, yes." I lovingly worked the rest of it in slowly until I was balls deep in my 'sis' for the second time that night. This time I would finish the job. The bed was creaky, so I didn't thrust too quickly for fear of my wife overhearing us. I instead used slow deliberate strokes. I looked down in the dim lighting and watched my long hard rod retract almost all the way out, and then push all the way back in balls deep, over and over. I ran my hands up and down her smooth tanned thighs, then grabbed her calves and lifted her legs up in the air and slung them over my shoulders. "Mmm, yes, like that," she whispered, "that feels so good." At the risk of making too much noise, I increased the frequency of my thrusts. My sister's body began to shudder as her pussy gripped my thrusting dick a little tighter, and she let out series of low moans. She was having an orgasm. I held onto her shins as I was now pounding her with reckless abandon. I turned my head and kissed her silky ankle, then took her big toe into my mouth. I hadn't noticed much before, but she had beautiful feet as well. She quivered as her orgasm intensified, "Oh yes!!" she cried out. With all the pent up pressure in need of release, that was all it took before I started irrigating her womb with copious amounts of my love juice. My orgasm seemed to last forever, as I deposited rope after rope of hot sperm deep inside of her. Somewhere in there, she transitioned from her first orgasm to a second, even more powerful orgasm. Both of us fully spent, and satisfied, I withdrew my softening prick from her, and cuddled up next to her. I gave her a deep kiss. "I love you so much, sis," I said. "I love you too, bro, thank you so much for this. I would never dream of asking you to leave my sister, but I hope this relationship of ours can continue." "Me too," I said, and with a blissful smile on her face and still holding onto me tight, she drifted off to sleep. I almost did the same. But then I snapped back to reality. I needed to get the hell out of there. Even though my wife had behaved tonight in such a way that implied she was more open minded than I originally thought, I was not ready to push my luck. I quickly vacated the scene, cleaned up in the bathroom, then crawled back into bed with my wife, who had not moved since I last left her. The next morning, we all woke up a little bit hung over, but not too bad. We busted out our cross country skis and navigated some of the trails close to our cabin. I never liked cross country skiing as much as I liked downhill skiing, as it was more work with less excitement. But we had a good time. We got back and had some lunch. We had a couple more hours before we planned on leaving. We packed up our stuff to prepare after my wife and I had taken showers. Jillian also took a shower, but after she was finished, she walked out of the bathroom wearing only a bra and a fresh matching pair of baby blue panties. Wife's Sister is Back for More I choked slightly and almost spit out my drink. Jillian and my wife both laughed at me. "You saw her naked yesterday in the hot tub for christsakes. Now all of a sudden you're getting squeamish?" my wife said with a laugh. "I'm gonna lay down for a while. I have a bad headache," Jillian said with a bit of a frown. "Okay sis, hope you feel better," I said. She walked into her room and closed the door. My, was her body a work of art. That ass looked like it was carved by Michelangelo himself. As my wife and I finished straightening things up in our bedroom, she came to me and gave me a big hug. "Thanks so much for taking me here this weekend. I really needed to unwind and get my mind off work." She lowered her voice, "Sorry for teasing you so much yesterday too. I can't believe we got naked in the hot tub with my sister!" I chuckled, "Hey, it was your idea!" She replied, "I know. But was it okay? Was it weird? I think it was weird. And she probably touched your penis when she fell on you." "It was fine," I said. "We were just having a good time. You know I love your sister and I'm totally comfortable. It's fine." I didn't address her comment about my penis. "Okay," she said. "Ya know... it kinda made me horny, when we were all naked together, wrestling with her, both of us falling all over you. And then you rubbing Jill's boobs. I can't believe I demanded that you do that." She laughed, "What the hell was I thinking? But for some reason that really turned me on. I really wanted to make love to you after we went to bed but I just passed out... I'm sorry sweetie." I pulled her closer in, and kissed her, "Well, who says we can't make up for that right now?" Without another word, we dove right into it. In no time at all, all of our clothing was littered around the room, and I was climbing on top of my wife, entering her from the missionary position. Despite the increased action the past couple days, my penis was still ready for prime time, and rock solid. I really did appreciate my wife, and this time, as I fucked her rhythmically, I hardly thought of Jillian. Little did we know though, Jillian was awake in her room, and had heard us. She had snuck out and tiptoed up to our door. In our haste, we hadn't closed it, and it was open a few inches. While I pistoned my hard cock in and out of my wife's sopping wet cunt, Jillian looked on from the doorway and put her hand down the front of her panties. She began fingering herself. Inside the bedroom I was now flipping my wife over. She got up on her knees, and I reached around and squeezed her ample tits with both hands before sliding my slick rod into her vagine doggy style. She moaned and arched her back to allow the deepest possible penetration, and almost immediately started climaxing. We were both facing away from Jillian now, so there's no way we would see her. Jillian more vigorously started fingering herself, inserting one, then two fingers into her warm hole. She pulled her panties down and wriggled them off for easier access. As she kicked them off, she bumped the table next to the door, and the lamp sitting atop the table fell over, crashing to the floor. My wife and I turned around simultaneously to see Jillian in the doorway, wearing nothing but her bra top, with two, maybe three fingers buried in her pussy. We all froze. My wife was the first to move, grabbing for her discarded bra, and quickly slipping it back on. Jillian and I just stared at each other in silence. A tear formed in Jillian's pretty eyes. "I'm... I'm sorry..." she stammered. My wife walked over to her, and pulled her into the room, enveloping her in a hug. "Hey, Jill, no, don't worry, it's okay." I didn't move. The two of them nearly naked and hugging was keeping me hard for the time being, even though I was a little flustered and didn't know what would happen next. "Come here, sit down," my wife said. They both sat on the bed, and my wife put an arm around her sister. Jillian sobbed, "Hey, I'm sorry... I just can never find a man of my own to please me and love me like you have, and I heard you guys, so I just came over here... I'm so sorry." "It's okay," my wife said, passing her a tissue. "Hey, listen, I know what might make you feel better. I know you're probably sick of 'attending' to yourself all this time. Let my husband help you." My wife had shocked me again. First the naked hot tub episode, and now this? Jillian said, "Oh no, you guys don't need to do that, I'll be fine." "Nonsense," my wife said. "Don't worry, we won't go too crazy, he'll just use his fingers on you. He's great at it. He can give me orgasms using just his hands without fail." "Wow, really? Okay..." Jillian said. "Hey wait a minute," I said, "are you sure about this?" My wife replied, "I think it's okay. I mean you already saw her naked yesterday. And we're all family here. It's not like you're gonna have sex with her, or eat her out, right." If she only knew. "I think this will make her feel better." "Okay," I said, feigning reluctance, "if it will help." As Jillian shifted on the bed onto her back, my wife said, "You can keep the bra on this time Jill," she chuckled, "I think we had enough of that last night." I laughed nervously. I tentatively rubbed my thumb against Jillian's slit. I looked at my wife. She nodded in approval. I looked down at Jillian's smooth shaved pussy; the best looking pussy I'd ever seen. I pulled up above her cunt to expose her clit and began working a finger over it. Jillian shuddered. Never thought I'd see the day. After second base last night, right now I was getting to third base with my sister with my wife sitting right there and watching. My hard on, which had subsided slightly, came back full force. I slid the index finger of my left hand into Jillian's pussy, while continuing working her clit with my right hand. My wife noticed my resurgent erection. She grabbed it, "Hey, what's this sweetie?" "Hah, what do you want from me, your sister's hot! Did you expect me to be able to do this and keep calm?" I now had two fingers inside Jillian's snatch, and I could tell she was very close to orgasm. "Oh man," my wife said, "this is turning me on, watching you. Is that bad?" My wife didn't wait for either of us to answer her question. As Jillian's orgasm began, my wife leaned over one of Jillian's long outstretched legs, grabbed onto it to brace herself, then took my cock into her mouth for the first time in probably a year, and began sucking it vigorously. Jillian's torrent of pleasure continued, and I was now full on finger blasting her orgasmic cunt with the first three fingers of my left hand while I continued attending to her hot clit with my right. Eyes closed and head thrown back, she moaned as I worked on her. She was so fucking hot. My wife's fingers had now slipped between her own legs and she started fingering her own clit. She continued to slide her lips up and down my shaft, and was doing a surprisingly good job. I could feel the head of my cock up against the back of her throat, and she relaxed letting it in still farther. She couldn't quite get the whole thing in there like Jillian could, but this was a valiant effort. Jillian began cumming for the second time while I continued to ravage her beautiful vagina with both my hands. Now my wife began cumming as well, and they were both moaning loudly, this was all too much for me, and my wife almost gagged as I began shooting my cum into the back of her throat. My wife swallowed it all, and then pulled my hands away from her sister's twat. She embraced me and gave me a long kiss. Jillian smiled up at us. I helped her sit up and gave her a kiss on the lips as well, to gauge my wife's reaction. My wife only smiled. My wife was the first to move to break up our three way group hug. "Okay, let's get dressed," my wife said. "We need to hit the road soon." "Thanks guys," Jillian said, "this means so much to me." She gave me a devilish grin behind my wife's back. The remainder of the trip was uneventful, and we didn't talk more about what had happened other than to briefly reaffirm that we were all okay with what had taken place. The unspoken implication of my wife was that this wasn't going to happen again. However, I was now emboldened by my wife's actions. She obviously wouldn't have been happy about what was going on if she knew, but she had indicated that she was FAR more open minded that I had though up to this point. And there was a sort of unspoken agreement between Jillian and I that we would test my wife's limits in the future, as soon as reasonably possible. I would now be braver in trying to find ways to have sex with my lovely 'sis' more often. There was no way I could bear to allow several MONTHS to go by before the next time I got inside her; that was for sure. Especially when my wife had sort of given tacit approval to at least SOME extent. I now at least had an inkling of hope that my wife would NOT kill me over it if she found out. Maybe I could even blame it on her for starting it this weekend. She didn't have to know when it really started. It would feel bad to continue concealing the truth about the past to her, but I think it would be better off that way, for all of us. Still, I had to be careful. My wife was now okay with the idea of me "helping" her sister out with her relationship issues, at least on some level, even if she thought it was over and done with. But my level of guilt was reduced. So now, unlike before, I WAS ready to push my luck. Obviously, it still probably would NOT be good if she walked in on me pounding her sister's gorgeous pussy one day. I would need to be careful. But incidentally, it would NOT be very long before she caught me doing exactly that...