14 comments/ 469885 views/ 121 favorites Doing Sis A Favor By: Krraaazzzzyyyyy For days the feeling of my cock in my Sister Michelle’s mouth haunted me. I just couldn’t get it out of my mind. The way she had solved my little problem with the tissue shortage had been completely unexpected, and totally marvelous. Funny, I had grown up with my little Sister and my Mom running around nude half the time, showing me and Dad all their considerable charms, and even felt free to jerk off around them, and yet it had never even remotely occurred to me that I might one day know the pleasure of being inside either of them. Which made the fact that the other morning I had cum right down my Sister’s throat, and nothing in my life had ever felt so wonderful, so much more mind boggling. Now, don’t get me wrong. I’m no virgin, in fact I’m something of a male slut… I’ve been around and am well known as one of the town studs. In fact, the reason I keep that dumb low paying job as a pizza delivery guy is because so many of the town lovelies, from high school girls, to sorority babes, to unhappy wives, like to order my sausage – hold the pizza. It’s a regular cottage industry. Believe it or not I actually get nice large cash tips from some of them, not that I care. I really do it for all the pussy I get, the money is just a bonus… or as I joke with one of the other drivers, a “bone-us”… Anyway, I just never imagined I’d actually get to enjoy the sexual delights of either of the two gorgeous gals that run around my house. I can’t seem to shake the excitement I feel every time I look at Sis now, and remember how good it felt to blow a load in her mouth. Somehow, it felt better than any of the many other women and girls who’d pleasured me in all my 19 years. I knew I had to have more. The only problem was, aside from an increase in her little flirtations with me (which she’d done since we were both preteens) she’d made no effort to let me know she wanted to do that again, or would be open to doing more. Michelle’s Prom was coming up, and so she was dress shopping. This meant she asked everyone, including me, what we thought of some dress or other in magazine after magazine, and so Michelle was constantly barging in and out of my room to ask my opinion. Sooner or later, it was inevitable that she would walk in and catch me whacking off again. Now, owing to my family’s relaxed attitude about masturbation, she didn’t freak out or anything. She just asked if I minded taking a break to look at some dresses for her, since she was running out of time to order. I knew she valued my opinion more than Mom’s since I was a guy close in age to her date, and so I said I’d look, “but I can’t just stop or I’ll go soft.” “Oh,” she said with a ‘duh, of course not, I’m so dumb sometimes’ look on her face, “well, then just go right ahead and keep doing it, I guess. But will you please have a look, I need to make up my mind and call in the order.” Then she flopped down on the bed right next to me, causing me to groan slightly at the closeness of her soft, clean smelling, curvaceous teen form, which brought a small smile from her as she snuggled in close to her jerking off brother. Then she opened the catalog to a page she had marked off and pointed to a picture of a really hot girl in a tight, clingy, sexy but classy dress that showed a pretty good amount of skin for a formal dress. Apparently this was the style though as the other pictures on the page were similar. I felt my cock harden a little more in my fist. “Oh, you like that one,” Sis said, having noticed the rise the picture got out of me, “Or is it just the girl,” she asked playfully, laying a soft sisterly kiss on my cheek – something that had always been mundane but now, as I lay jerking off next to my sweet sexy sister, her lips on my cheek felt incredibly erotic. Precum bubbled out of my cock and coated the shaft in reaction. “The dress would look better on you,” I said, honestly, yet without denying the picture of the other girl was a turn on. She showed me some more pictures of the girls in their dresses and eventually I saw one I just loved, and as I slowly stroked myself I told her so. “Really? You like this one best? Cool! Me too. Then I’ll definitely get this one.” “Alright,” I said, “you do that.” Then I noticed the price tag. “Sis,” I said, forgetting about my masturbation for a second, “how can you afford that? Surely Mom and Dad aren’t gonna give you that much!” “Huh?” She said, leaning in to look at the amount after the dollar sign, bringing her face only about a foot from my waving flagpole as she did. I noticed she did take a good look at my man meat for a second before turning her attention back to the catalog. “Oh shit! I really liked that one! Well, what about that green one,” she said, turning the page back. “I could give you the extra money,” I heard myself saying, as though through a closed door. Did I really say that, I thought. “Ohmigod! Really? Really!” Sis threw herself around me, crushing her soft tits into me making me groan, and bringing her leg up on my hips as she kissed and hugged me, not noticing that her bare leg was now rubbing my hard cock as she thanked me profusely. “You’re the best big brother ever!” Oh well, I thought, unable to resist enjoying her body on me, especially her baby smooth leg rubbing my engorged manhood, I guess I did say that. I guess there goes a grand of that “bone-us” money… Then Michelle pulled back and with her hands on my arms looked me right in the eye, and said, “you really don’t have to you know…” “I know,” I replied, having decided ‘what the hell’ and not taking the opportunity she gave to take my offer back. Delighted, she hugged me again and this time gave me a small chaste kiss on the lips. As she did so, she unconsciously drew her leg up a little more to get her leverage, and with the extra friction, and pressure, I gasped loudly into her mouth in pleasure. Suddenly Sis realized what she was doing to me, as she became aware of my cock sliding on her smooth leg. Grinning, she deliberately stroked her calf along my length a few times, making me squirm and groan. “hmmm… I guess you like my legs, Huh Big Brother,” she said with an evil grin. “I like every part of you,” I said in a trance, every word the truth. That comment seemed to do something for her, as I felt her melt into me a little. Then she began to rub her leg more deliberately against my cock, which now was so hard it ached. The sensation was incredible. Giving in to my Sister’s charms, her body taking control of my mind, I felt my hands take ahold of her sweet ass, feeling and squeezing the firm globes of her athletic, tight butt through her small running shorts. As I did, Sis kissed me again, and this time we each instinctively opened our mouths. In a mere moment, she was very rhythmically running her smooth leg over my throbbing cock and we were wildly frenching. A moment later I felt her hands take ahold of my wrists and realized with regret that she was probably about to call a halt to this before it went too far, but then she lead my hands to her chest. “Here,” she said, breaking our kiss only slightly for a second as she placed my hands on her t-shirt clad tits, the nipples poking through the thin fabric into my palms. Then we were kissing more, and her leg was driving me crazy. I guess she sensed it when a minute or so later I was ready to cum because she stopped, stood, and went and closed my bedroom door. Then she turned and smiled at me, and began pulling off her clothes. Instantly, I was stroking myself again as I watched my Sister strip naked – and it was a helluva a thrill knowing that of all the times I’d seen her dress or undress, this time she was doing it just for me. Walking over to the bed, sis paused slightly to slide her panties off, making me drool as I saw how they clung for a moment to the soft wetness of her sex, before she straightened up, tossing her hair, and pulled them off. Then she sauntered over to the bed, and yanked the covers off. “Scoot over,” she said softly, and I quickly complied. Sis then climbed into my bed, naked, next to me as I lay naked and stroking my massive erection. Without a word she turned and our lips came together, resuming our kiss. Eyes closed in bliss, I felt her hand gently slip up under my own to take over stroking my cock, and the sensation of my own sister’s delicate hand holding my wildly throbbing boner was something to melt the mind. My hands, in turn, wandered my Sister’s perfect body, and she did not object even a little as I touched her in all her intimate spots. As my fingers began to rub in the crease of her sopping wet pussy, she tightened her grip on my cock and stroked me even more meaningfully. Then, suddenly, she let go, and pushed me away. “I… I…” she gasped, short of breath, her eyes smoldering as she looked at me, “I need your help with something else…” “What,” I whispered, willing at this point to do anything she asked, even if I went broke. “Hire a Limo? Buy his tux? I don’t care… just don’t stop!” “No, silly,” she said, blushing as she realized how wrapped around her little finger I was now, “not anything like that… you’re really sweet to buy my dress… that’s more than enough. It’s just that…” “What,” I said, wishing she would stroke me more, as I reached for her again. “Well,” she said, allowing me to pull her close, and letting her hand instinctively lay on my cock again, but fighting her urge to stroke me more, “I… I don’t want you to think I’m a slut…” “God, no,” I breathed, “is that all?” “Um… no…” she said in a small voice, “um… don’t be mad OK? I um… I really want you right now, and that’s part of it, but the truth is I really want Tommy, too, after the prom…” Tommy was her date for the dance, and I realized what her problem was, she wanted to have sex with me, her own brother, but she also wanted to have sex with her date, which was more normal… My mind tried to figure out what could be a problem about that, I mean, how would he know? Then I figured the rest out – she couldn’t fuck me like she wanted, and like she knew I wanted, because if she did then her date Tommy would know she wasn’t a virgin and think she’s a slut. Holy shit, I thought, I almost took my Sister’s cherry! “Oh, honey,” I said, trying to ignore my raging hormones as I hugged her comfortingly, once again her big brother protecting her instead of a man under her spell, “I understand… it’s OK if you want to save it for Tommy. I guess your reputation is at stake… but I’m really jealous…” Then she kissed me again, hard, pressing herself into me urgently, and in a minute broke the kiss leaving us both gasping. “Yes,” she said, panting, “you’re right… I’m a virgin… I love your cock Big Brother but it really is the only one I’ve ever touched, or even seen… except Daddy’s and pictures. And yours is the only hard one I ever played with.. or sucked,” she said, blushing, reminding me of the morning I ran out of tissues. “It’s OK… I understand,” I said, almost weeping inside, “it’s totally normal to want to lose it to your boyfriend after the Prom…” Then I thought a second and said, “but do you think, after…” “NO!” She practically yelled, causing my hopes to deflate, her head drooping to my chest, “I mean, you’re so sweet, and yes… I would, after. But you don’t understand. Yes, I’m cherry… but I don’t want Tommy to take it – I want you to!” “Really? Now?” WOW! “Yes… now… really…” she gasped, kissing me wildly, “I want you to pop me and teach me how to do it… that’s the favor. You had it backwards big brother… my reputation won’t be ruined if Tommy find’s out I’m not a virgin… it’ll be wrecked if he finds out I am!” “No,” I whispered in her ear, “you’re not… not anymore!” All my boy toy training for all those ‘pizza’ sausage loving babes came into play, and like the seasoned young gigolo I was I took charge, rolling Sis over and bringing my cock right in line with her molten girl center. We locked eyes, and then she deliberately closed hers. There I was, propped over my naked sister who lay trembling and vulnerable beneath me, her sex open and my cock on target for her virginity, as she clung shivering to me, giving herself to me. Then I did it, pressing my cock down I felt my manhood make contact with the squishy, fleshy and tender folds of my sweet, loving little Sister’s incredible pussy. With only a little push I began to slide in, her cunt opening like a flower before the rays of the sun for my rampant staff. “Huh,” she gasped in a high voice, her breath catching in her throat as I got about halfway into her, my flared crown briefly touching her fragile barricade. Then I drew out, her wetness and her tight flesh clinging to me as I retreated. Then, squeezing my eyes shut as well, I regrouped my forces and launched my assault, slamming the full length of myself into her, the thin membrane of her girlhood tearing away to once and for all open up the woman in her, feeling the warm, clutching love tunnel of my own little Sister closing on me like a loving embrace. “Ohhhhh My Gaaaddd,” she said loudly as I bottomed out in her pussy, her fingernails briefly digging into my back. Then we were kissing again, and her legs wrapped around my hips. I’m not sure how long we kissed before our hips began to move again, but it felt like forever, and not at all… “Oh, God, Big Brother…” she whispered in my ear as I pounded myself mercilessly into my baby Sister’s tight gripping cunt, “it’s so big inside me… I never thought… OH!” I too, moaned, grunted, and whispered as we fucked. I told her all about how her pussy was the tightest one I’d ever had. I told her how much I loved her, and how happy I was. I told her, obscenely, how good her body felt to me, how fantastic it was to be inside her. She echoed every sentiment, every rude but delicious admission of carnal pleasure. But then, we both sort of lost control. Forgetting all about the entire world, I began to really fuck my Sister. Flipping her over, without pulling out, I got her to her knees as I crouched behind her, holding her hips firmly for leverage. Savagely I fucked her, bringing ever louder and more frantic cries and screams of ecstasy to my own little Sister’s gorgeous lips. Shamelessly I grunted, groaned, and growled as I fucked the one girl I’d ever touched who I actually loved with all the force and abandon my wiry, powerful teen body could muster. For her part, Sis loved every second, every stroke, and as I savagely had my way with her, churning my throbbing staff of flesh inside her dripping wet, tight, hot cauldron, stirring her, she screamed, moaned, gasped, and begged for more. Then I felt my balls draw up, and knew I would soon be firing off inside her. In some part of my mind I thought for just an instant that I better not cum in her, that it was risky, but that was almost instantly forgotten as I gave into that primal need to pour your seed into a willing womb. “OH, GOD DAMN!” I bellowed at the very top of my lungs as I leaned over Sis, my hands sliding down to firmly grasp her tits and pull her, hard, all the way onto me. I arched my back and felt my brain dissolve and shoot down my spine, and out in liquid bursts from my cock, and I rested my head against Michelle’s back as I planted my sperm in spurt after spurt into her tight, clutching pussy. “YES! YES!” she said loudly, “YES, GOD YES! CUM IN ME… OH GOD YES PLEASE CUM IN MY PUSSY!” And then she was cumming too, her pussy vibrating and squeezing around me in uncontrollable, unbelievable contractions, each one making me gasp, each forceful squeeze drawing a little more of my baby juice from my balls. Together, we collapsed as one heavy breathing heap of sweaty arms and legs on my totally messed up bed. I jerked involuntarily as my cock slipped from inside her, and at the same moment she made a hollow sound of loss. After we each caught our breath she rolled toward me, kissed me passionately, said “I Love you more than anybody,” and then she stood up, took her magazine, and walked out of my room. Man, I hated seeing her go, but I sure loved watching her leave. I wondered then, would she be Tommy’s girl after the Prom? Could I handle that? But the exhaustion of the best fuck, the absolute best ever, dragged me down. As I fell asleep, I think I briefly saw my Mom, naked, in the doorway, looking concerned. But I couldn’t stay awake, and faded out…. Doing Sis a Favour "Hi Robbie, it's Lisa. How's things?" It was my sister Lisa, 26 year old brainiac accountant. She was the apple of my father's eye and this was not diminished when after a whirlwind romance, Jeff had done the very correct thing and asked my father for his daughter's hand in marriage. Needless to say, it was a jawdropping spectacle of a ceremony two years ago and the happy couple set up home some fifty miles away, nearer to Jeff's job as a fighter pilot. Yes, you heard correctly, my brother is a fighter pilot, in the Air Force and by all accounts, he's a pretty damn good one. So, what about me? Well, I'm 28 and I do ok. I have a good job, as a banker, not on Wall Street or anything but I have a comfortable life, which is just as well as I'm paying maintenance on my two daughters. This time the apple's are in my eye and I've been doubly blessed. Just before my little sister married, I got divorced citing irreconcilable differences. She wanted to screw half the county and I didn't. So she shacked up with her adulterous lover, with my kids and I get to pay for them. But enough of the back story, on we go with the phone call. "Jeez! Lise. What the hell time is it?" I was still in bed, having had a night out with the guys which didn't finish particularly early and my bag of bones of a body took a few hours to recharge. "Rob, it's half ten and the day's almost half over. Don't tell me your still in bed?" her silvery laugh giggled down the phone. More background on my sister. Not only is she a brainiac with a great job, great husband and fabulous lifestyle but she has an amazing personality and a killer body. All curves but not an once overweight, trimmed and tanned from an active lifestyle and time spent in the sun at home and abroad. If I was to guess, I'd say she was a 36C, with a 34 waist but I could be wrong and around 5'4" with green eyes that sparkle when she laughs, or smiles or tells a joke. And me, I'm 6'2" and thanks to a gym and run regime, combined with not doing anything too stupid, too often with what I eat and drink, I look pretty good but for whatever reason I've yet to find the next ex-Mrs Robbie Sloan. A few one night stands have lasted into months but nothing beyond that. But again, let's get on with the phone call. "Maybe for you but not for me. We've been up since seven and been for a run and shopped already. We're getting ready for a surprise trip back to the old country to see the folks and wondered if you'd be around much to catch up?" "Uh, dunno. I mean not sure. Errr.." My brain was still struggling with the concept of consciousness, having been in blissful unconsciousness only moments ago. Lisa laughed down the phone at me "C'mon sleepyhead. Stop fiddling with your joystick and get your head in gear. Let's take it slow, step-by-step. It's 2007, June, 16th, 10.30, Earth. Any neurons firing yet?" Her energy was infectious and I was crash starting those neurons. "Right, yeah. Well, I was gonna hook up with John and Mike tonight but that's nothing that can't wait for another time. My liver could do with a night off. So yeah, count me in. Better still, my place is bigger than theirs so you can all meet up here. I'll get Lorenzo's to cater and get some chips and shit and we'll have a blast. Everyone can stay over and we can hit the beach tomorrow. How does that sound?" "Apart from Lorenzo's, that's how the rest of my conversation was going to go so I'm glad you cranked up that steam engine of a brain of yours so quick. I told Jeff you'd be cool with hosting us all and wouldn't mind, so not only was I right but I didn't have to ask. You're a rock, Big Brother! Mwah! I love you!" "Yeah, I love you too sis, not a problem but next time give me more of a head's up' Kay?" I was stumbling around my room now, gathering sweats and specs to get my day started. "See you when you get here." And I went to hang up. "No wait, there's something else I need to say." So I stalled what I was doing. "I'm listening, what now? My kidney, liver? Hang on, there's someone at the door" and I jabbed the entry phone button. "SURPRISE!!" Lisa and Jeff's voices filled the room and I realised that I had been caught out. "Oh my God! Lisa, I'm not dressed yet and you land on my doorstep?" The panic in my voice was real, so was the early morning woody that was bouncing 8 inches ahead of me. I hadn't gotten into my sweats yet. "Relax Big Bro. We're not coming in. We're on our way to some of Jeff's buddies and thought that we'd give you a wake-up call. Get yourself sorted and give me a call and we'll swing back later. Take care. Mwah!" "Fuck Lise! You had me there but that sounds great. You guys have a great day. Now scram and leave me in peace!" I hung both my phone and the entry phone and headed for the shower. The shower put me back together again and I spent the day running errands, arranging for the food to arrive later and giving the happy homestead a wash and brush up in readiness of my visitors. I was watching sports later that day, with everything ready when the entry phone went again. "DADDY!" I couldn't believe it, my daughters' were there as well. This was great. "Come in. All of you come in, the more the merrier." And I buzzed them in. Mandy and Jess ran through and bear hugged me. Lisa and the gang followed after. She looked amazing. A turquoise sundress with spaghetti straps that finished mid-thigh and started low enough to reveal an ample gorge of cleavage. Everything was on show and everything was bronzed and tan-line free. God, she really was too perfect to be true. "We thought we'd surprise you. We called Sally and she said there was no problem adding an extra weekend's access. So here we all are. You ready for us?" Her eyes twinkled and her laugh rippled through her words. As she bounced into the house all her curves flowed beautifully under her dress. "You guys are the best. Come in. Come in. Make yourselves at home. Girls, put your stuff in your room. Mum and dad, you can take my room and sis, you and Jeff can take the guest room. I'll take the den. Do you wanna hand bringing anything in?" "No, we got it thanks. Honey, you and mum and the brats can chill while the eligible bachelor fixes drinks." And Jeff headed back out to the cars. "Hey, Ace. Just cos you wear stripes for the day job, doesn't mean that you're the C.O. on this base buddy! But in this case, I'll follow orders. What are you having? Or is Margarita's all round?" I was heading to the bar as I spoke, having pre-mixed litres of the stuff. "Don't forget, no-one's driving tonight!" "Count me in buddy. And I'll quit bossing y'all around." Then he caught Lisa's raised eyebrow, "or try to stop anyway!" Everyone else agreed and I got the glasses ready, poured and served. Doling out Shirley Temples for the girls. We all sat out back, soaking up the rays, watching the rugrats frolic in the sun and catching up on what was happening with everyone. This last item focussed on not-so-subtle enquiries from my mum on why she wasn't a grandmother yet. In response, both Lisa and Jeff laughed and said they were still too young and focussed on their careers to bother with children yet but watch this space. The evening continued with drinking and laughing and reminiscing for Jeff's benefit of our exploits when we were younger. These stories got more lurid and extravagant after the children were in bed. "And there was the first time I caught Robbie whacking off..." "LISA!!", my mother and I screamed in unison. Neither of were keen for that piece of laundry to get a public washing. "Shhhhhh! You two. Every guy does it, I know Jeff does and I always get a tingle watching!" "LISA!!!", my father and Jeff joined us this time. It was clear that her ability to handle her drink had not improved with age and she was slurring and rambling. "Pish! I'm gonna tell the story so you might as well deal with it. Robbie had come home from Uni for the holidays and was back in his old room. Everyone was out and he was talking to Sally. Asking how she was, what she'd been doing since she got back from the Uni and then it got kinda interesting..." "I'd just got back from college and was heading to the shower after some extra cheerleading practice when I heard him talking, saying stuff like 'I miss you too' and 'Yeah, I wish I was with you, too', then he says, 'What're you wearing baby? ... Are you all alone there?... How about we get our freak on? .... Take 'em off ... You want me there, touching your stiff nips, licking you skin and kissing you all over?', so I stop and stand just outside his door, still got my cheer gear on, warm towel in one had and gown in the other. And I'm mesmerised by the conversation, I can't move and I concentrate on trying to hear every sound from behind the door. A door I might add, that I've just noticed isn't closed all the way." "C'mon Lise, there's no need to go any further." I plead as I'm starting to remember this incident and I'm not sure that I want any more details shared with my nearest and dearest. "So, I sit down on the floor so's I can peer through the gap between the frame and door. Robbie here is butt naked save his boxers and he's laying back on his bed, the curtains are drawn and the only light is coming from the monitor on his PC, giving his tanned body a ghoulish blue hue. He has the phone at his ear and his other hand rests on the bulge in those boxers. I was really impressed with that bulge by the way, God it was huge. I had no idea that boxer fabric could stretch so much around so much meat! Anyway's, I've still got a bit of a funk on from practice and I'm definitely glowing but I'm getting a tingle under my panties too." "Lisa, dear, do you think this is the sort of information you should share about yourself in front of your father and me, let alone your brother." My mother was trying to spare everyone's blushes now but I'm less reluctant to hear this story. The drinks and the sun have warmed me through and I think I have the same glow and tingles that Lisa is telling us about. Not exactly the same obviously but I was grateful that I was wearing boxers a lot baggier than back then. "That's ok, it's kinda cool to hear this old stuff again. And from a girl's perspective too, is funny. And if Top Gun here don't mind his woman giving a little show and tell, then I can live with it." "Robbie, you are so Anyway's! Where was I? Yeah, big brother here was stroking his lump, getting his talk on with his girl and I was getting all itched up listening. You don't mind me going on do you babe?" She looked across at Jeff for his approval, or at least not to see disapproval. He seemed relaxed and chilled and happy for the story to continue, at least for now. "So now I lean on the wall, spreading my legs out on the floor, listening and watching. 'You're what? Just wearing that set I bought you before we went away? God, you looked so sexy in that. With your breasts falling out of the cups and your ass cleft by the string of the thong. I bet that thong's getting wet now isn't it? Go on, give it a tug, feel how it rubs your pretty clitty. Me? I'm just laying here in my Calvins', throbbing. Yeah, I'm on my back, what about you? On your side? In your sister's room? Isn't that the one with the big mirrored wardrobes? So you've got your back to those? God, I wish I was stood at your door so I could see your front and amazing rear at the same time. Jeez, how I love that ass of yours, so smooth, so tight, so pert and peachy. Just thinking about it is getting me so fucking hard. So how about that thong of yours? Just how wet is it? Touch your sweet spot for me will you.' At this point I have to admit that my own sweet spot wanted some attention so I shucked off my panties and idly strummed my swollen lips. I was getting soaked and loving it. All of a sudden, my cheer gear seemed really tight as my breasts filled out and my breathing got heavy." You could have heard a pin drop as Lisa paused for breath and to sip her margarita. Everyone was at pains to avoid looking at everyone else, no-one wanted to make eye contact and reveal their arousal. All that could be heard was the silent gulps of Lisa drinking and the ragged breaths of the rest of us. Finally, Jeff broke the silence. "You all done honey, or you got any more to tell?" The time that passed after that could have melted glaciers, or so it seemed until finally, "Sure Jeff, I'm just getting to the best bit, when have I ever left you hanging? Don't answer that, so I was, you know, tickling my fancy with one hand. Then I stopped and pulled my jersey off, unclipped my sports bra and let these puppies out," as she said that, she put her drink down and cradled her womanly bosom, pushing her ample cleavage up to the point of revelation. Then leaned forward, shook them and sat back again. "So I got back to fingering but now I was squeezing a breast and thumbing a nipple as I watched Robbie here wriggle out of his boxers, revealing that tree trunk of a cock. Stiff upright, proud and demanding attention. 'Yeah, now I'm naked too. You should see the size of it, I could hammer nails with this thing!' And indeed you could big brother, I was really impressed. I hadn't had much experience up to that point, sorry Dad but I had had some but it was the biggest I had seen and still is, sorry Jeff. Both my father and my brother looked embarrassed and glanced at each other in resigned acceptance of their own shortcomings, as Lisa continued. "Somehow, my big brother got his big hand round his big cock and slid the uncircumcised outer skin up and down. His hips twitched in rhythm and his cock pulsed beneath his fingers, pre-cum cresting from the tip to be smeared along the length beneath his fingers. That's where I learned that Jeff, so really you should say thanks to Rob sometime. Anyway, Rob's rubbing his wood and getting into a groove and I'm doing the same. Not rubbing my wood, but rubbing my groove and getting my fingers deep inside it. So this goes on, like forever, and I'm really getting lost in it. I'm on fire and all I can do through clenched eyes is listen to Robbie grunting and groaning, hoping he can't hear me. Then for some reason, on the brink of my climax, I open my eyes and glance through the doorway. There for the first time in my life, I am witnessing a male orgasm, watching my big brothers cock hose his cum in the air, fountaining his jizz over his groin and sheets. The sight pushes me over edge and my own release breaks forth and I drown in the euphoria. I bite down hard on my cheek to prevent myself from crying out loud and I taste blood." Everyone around the yard was fired up and ready to pop, waiting expectantly for the next words from those angel lips, God she really was beautifully put together. Whilst I remembered the occasion well, I had no idea that Lisa had been watching, lost as I was in mine and Sally's fantasy world and expecting to have the house all to myself. It was one of the most intense sexual experiences I had ever had and now to add the fact that my sexy sister had watched and wanked off as well, had me set to burst again. Thing was, I was now consigned to the sofa, so my opportunities for relief were limited. With any luck, once the house was quiet, and Lord knows how long that might be if the lucky couples decided to take care of their own needs tonight, I could slip out to the bathroom and put my own house in order. "Well, I think we've heard quite enough for one night young lady, time we all turned in or those children of yours will run us all even more ragged than usual tomorrow." My mother's attempts at restoring the status quo were accepted and my father grabbed her hand and pulled her to my room. Jeff did the same, pulling Lisa to the guest room. "Night son", "Night Rob", "Night bud", "Goodnight Robert, thank you for a delightful meal and hospitality." And I bade them all goodnight in return, unpacking the bedding for the sofa bed in the den. I settled into my bed for the night, in just my boxers, listening to the sounds of the others make trips to the bathrooms before closing their doors. I could hear giggling and the sound of the beds being filled and enjoyed. I pulled my sheet over my head and longed for sleep. Despite my raging hard-on, that went unrelieved, the margaritas dragged me into unconsciousness and I slept. Only to be woken in the middle of the night but hushed curses and stumblings. "Fuck! Shit! Who the fuck put that there?", it was Lisa and she was moving around the house, unfamiliar with its nocturnal layout. What was she doing? Could she not sleep? Was there a problem? "Lise? You ok?" I called into the dark in a whisper that I hoped would carry to her and no further, for fear of waking the household. "Sh-sh-shhhhh. It's all good, it's all fine. Just little sister coming to see her big brother." Her voice giggled with margarita as she padded across the wooden floors towards me. My eyes adjusted to the gloom and I could see that she wore a football shirt, in place of a nightgown. It's hem kissing her upper thigh and full buttocks. "Move over stinky, make room for me," and she pushed the covers away and backed onto the bed." "Jesus! Lisa, what are you doing?" startled, I recoiled back from her and temptation and towards safety and decency. Knowing as I did that my turgid cock still longed f or release and had tented the bedclothes since I had heard Lisa's voice. "Mmmmm, just like all those years ago. My big brother in his bed with his boxers on. Only this time, I'm a woman with needs and desires and you're gonna help me out." With that, she lay down and pulled the bedding around her. "It's ok Robbie, Jeff knows I'm here. I told him you'd help us out. You see, he's been firing blanks all these years. An ace in the skies, a real dead-eye dick but in the bedroom, he's a dead loss. We've been trying for kids for over a year now and got the test results back last month. It ain't never gonna happen. There's more seed in a grape than my loving husband. That's when we decided that adoption wasn't for us and it would be best to keep it in the family, so to speak." "What? What on earth are you talking about?" her silky form was closing the distance between us as she spoke. "I'm at my most fertile this weekend and we want you to make our baby for us. We know you're up to the task. We've seen your daughters, so we know your gear's in order. We hatched this plan to get you all horny by telling an old story and getting drunk and hoping that you'd take advantage of your poor little sister in her hour of need. But to be honest, I hope this doesn't work first time. Cos ever since I saw this monster, I've dreamt about sucking it and fucking it," her fingers snaked around my penis. "I want to ride this baby stick again and again and for you to fill me with seed. Time and time again. In return for knocking me up, you can fuck all ways from Sunday." My brain fumbled at the words, trying to make sense of them. My own sister wanted my seed. My beautiful, sexy, brainiac of a sister who was married to Mr Perfect couldn't get the one thing she wanted. Her perfect husband was incapable of fathering the child they craved so they were turning to incest instead. My cock on the other hand, suffered no such dilemma. It reared and jerked beneath the fabric, resolute in its desire to fulfil my loving sister's request. But I needed to maintain the appearance of reluctance. "Lisa, no we can't. It's incest kiddo. No matter how much you want a child, there's gotta be other ways." I was backed up all the way to the edge of the bed now with nowhere else to go but to fall out. I was still facing Lisa as I felt her move again, backing up to me. The smooth skin of her calves, resting against my shins. Her jersey covered frame nestling against my chest." Doing Sis a Favour "There may be other ways, big brother, but I've got to know what it's like to have this inside me. To be rent asunder and stuffed full of your flesh." As she said this, she ground that peach of an ass into my lap, her naked buttocks gripping at the loose folds of fabric of my boxers. And I was lost. I circled my arms around her waist and pull her to me, cherishing her breasts in my hands through the smooth fabric of the jersey, returning her thrusts with my own. Drilling her naked ass with my boxer clad cock. "There's gonna be hell to pay for this, Lise. But right now, the price seems right." She murmured her celebration of victory, knowing that my resistance was defeated and she would have her wish. "C'mon Big Brother. Fuck your little sister and make me a woman. Fill me full of the family jizz and make me a baby. Make yourself an uncle-daddy!" As she spoke, she placed her hands over mine and squeezed hard, at the same time pressing that cherry-ripe ass into me and grinding harder. I kissed my little sister's neck, licked and nibbled at her. Turning her skin to gooseflesh and nuzzling her ear. "You got me sis, I'm gonna pump your cunt so full, you can taste it in your mouth." My hands gripped her jersey and pulled up. As I did, she leaned forward, allowing her golden globes to be unveiled as her top shifted lifted. Not only was this a breathtaking sight but in doing so, that golden flesh ground into my throbbing cock. "Taste? Now there's an idea." And with that she shifted down the bed and turned until her breath stirred the hairs around my thighs. "Now let's get rid of these pesky things and see if you're as big as I remember." My cock, already stiff gave a further pulse and the fabric covering its tip grew darker with pre-cum, in anticipation. Then my naughty little sister licked that wet spot, one muscle rubbing another as her tongue flattened along its length. Afterwards, she gripped the waistband and tugged. As I wriggled to release my boxers to allow their removal, my penis emerged and bobbed before my sister's face. She watched, mesmerised, following its erratic movements and then swooped, engulfing the swollen tip with her lips. And she sucked... And she sucked... And she sucked. Her cheeks hollowed in with the pressure. Involuntarily but lustily, I would twitch forward every once in a while, forcing the crown to rub her lips. And I would groan with each ridge and ripple that was mapped by her lips. She slurped back and withdrew my cock form her mouth, to speak, "You do taste so good Big Brother. So good and tasty. So sweet and salty. But I can hardly get my lips round it, you're making my jaw ache. I best just get this baby maker where it needs to go." And with that, she moved back up the bed, twisting her body and pushing my boxers down to my knees. As she turned around, my newly released drew patterns upon her golden, downy flesh. Tracing her form and inching closer and closer to the cleft of her buttocks. As we settled into the classic 'spooning' position, she brought my hands around her waist , under her jersey and up to her breasts. Her neck nestled against me an I kissed her, inhaling her perfume and exploring the exposed flesh between shoulder and ear. Content that my hands were where she wanted them, cupping her breasts and thumbing her nipples, her own hand reached between us to grasp my penis. Gripping it firmly, she rubbed it across her ass cheeks, smearing pre-cum on them, then sliding it between them. Stroking it up and down, we both moaned, groaned and started panting heavily. I squeezed and pushed her breasts as I jerked forwards, searching for a way in. During this, she bent back, thrusting her ass up and down, burying my head between her globes. "You ready Big Boy?" the words caught as she spoke giving them an erotic edge, pushing more buttons than I thought I had. As she used her other hand to pull at her cheek, I slipped one of mine down and pulled the other, revealing her puckered starfish and sparsely covered pussy. The lips of which were puffed and heavy. In response I edged forward and she guided me between those lips and into her moist, warm haven. Each inch of penetration escalated the ecstasy of the sensations as her labia stretched around me and her sugar walls moulded to accommodate. If you had asked me yesterday if I would ever commit incest with Lisa, I would have called you a sick fuck and secretly wished that such a thing were possibly. Now a day later, she was sharing my bed and her body as I entered her fertile womb. I had succumbed to her seductions and was prepared to father her child. To impregnate her with my seed and grow life inside her. And it was wonderful. Our bodies moved in rhythm and each thrust took me deeper inside. Ultimately, her cheeks rested on my scrotum and I was completely buried inside her. Until this point, we had moved with controlled exploration but once fully impaled, she ground her hips and bent forward. I had to move my hands, smoothing down across her stomach until they gripped her hips. Once locked, our pace increased and was matched by an increasing temperature as our passions flamed and we lost ourselves the lust of the moment. The exquisite sensation of penetration, the knowledge of the sin that we were committing, the proximity of our parents and the recognition that it had been some months since I had had this kind of intimacy with a woman all contributed to the rising need to ejaculate. "Lisa, I..., I ..., I don't know how much longer I can last." I could feel my toes tingling as my body prepared to create life. The world shrank to the size of our bodies, I was aware nothing else but the feel of my cock thrusting into my sister's pussy, my thighs slapping against the backs of hers, my hands sliding on her hips in the sheen of her lust. Her moans rising until she pulled a pillow against her face to muffle the sounds. In a moment of restraint, she pulled her head up to gasp, "Yes! Yes! I'm so close to cumming too. I need this. Fill me with your spunk. Give me your seed and make me a baby Robbie. Fill my belly and make me a mummy!!!!" That was it. The flood gates opened and I launched myself into her as her climax hit. Her fists gripped the pillow and her ass thrust back to receive my seed. I was committing the most taboo of acts. I was impregnating my sister with our child. That which had received life from her mother, was giving life to her own child. And it felt fucking fantastic! I hadn't felt this good since .... well, I couldn't remember ever feeling this good. Not with my ex-wife or subsequent partners had caused this level of euphoria, of adrenaline rush, of total, total love. It didn't want it to end and I didn't think that it would. I was shooting stream after stream of semen into her spasming womb. "Oh, Robbie, you're still cumming. Oh my God! I've never felt so full. That was amazing. If I'd known it was gonna be this good, I'd have talked Jeff into letting you fuck me long ago. But all his ideas to get you horny really worked didn't they? His choice of dress for me today pushed all your buttons didn't it?" In the post-orgasmic glow, the words filtered through to my brain, "Excuse me? Persuade Jeff? Get me horny? Just when did you two plot this?" As I spoke, Lisa curled up and pulled my arms around her. "Plot's a strong word. But we hatched this a month or so back when our last round of IVF failed to produce any results. Rather than throw more money at it, we thought about a bit of D-I-Y first and to see if you'd help us out. I wanted to just ask you outright because I've seen the way that yo look at me but Jeff wasn't sure and, in his words, he wanted you 'Gagging for it!' and besides we thought it'd be fun to seduce you." I couldn't believe it, I thought that this was a spur of the moment thing but they'd come up with the idea while stone-cold sober. Not as I thought after an alcohol-fuelled day of risque conversation and banter. "I don't know what to say Lise. I guess you're right that I've wanted you for a while but never done anything about it. All I can say is that while I would have said yes, if you'd asked, this was a whole load more fun so I'm glad Jeff came up with it." "Me too Big Brother, but hush now. Jeff's gonna come for me in a few hours and I want to fall asleep in your arms for a bit. Who knows? Maybe you'll surprise me later?!!" And with that, we nestled against each other and drifted off to sleep.