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I Caught My Sister Muff Diving

By: onwardbob



It was summer break, and I was spending a couple of weeks at home. The folks had made plans, so over this one weekend it was going to be just me and my younger sister Tracy. It was a Friday night and she was going to a party with one of her girlfriends. I'd told her after a night partying with some buddies, I probably just end up crashing at one of their places. And that's why Tracy wasn't expecting me to show up. But, as things worked out I actually beat my sister home.

It wasn't even midnight when Tracy showed up with her girlfriend Julie in tow. It turned out that they hadn't realized I was home. And, I'd didn't know that they were, until I headed in for a shower.

Our bedrooms are at either end of a hall, with our bathroom separating them. So, I heard them giggling, and thinking they sounded a little buzzed, I stopped to listen. It was obvious Tracy was trying to talk Julie in to something. But all I heard was "Come on, don't be chicken...you said you wanted to try it...and anyway, what's the big deal?" Of course, I was instantly curious, my naturally dirty mind flashing to an image of the two of them naked and sixty-nining. But thinking, my sister, no way; I started for the shower.

Curiosity peaked, I stepped in to, and right back out of the shower, deciding sneaky quiet was in order. So silently, I pushed the bathroom door open, and listened. And I was in time to hear Tracy's "Yeah, well you're sure you're good with it?"

There was the sound of shoes hitting the floor, and then the unmistakable sound of a zipper being pulled. And it was Julie I heard saying "Sure, yeah why not...oh fuck, sure, as long as you're not expecting me too!"

Leaving my wet bathing suit behind, I wrapped a towel around my waist, and crept silently down the dark hallway. But even before I reached the door, I could see Tracy's bed in the reflection from her closet's mirrored doors. And despite my very active imagination, I still could barely believe my eyes. Julie was stretched out on the bed, bare ass naked, with my equally naked sister laying between her spread legs. Tracy had her hands resting on Julie's thighs, and I wasn't the only one staring hard at her fully exposed pussy.

Julie's the same age as my sister, and they both just graduated from high School. I'd always thought Julie was pretty cute. She's a red head, and as I'd just discovered, one with only a tiny trimmed triangle of pubes. Tracy's prettier, but for sure Julie's big round tits and her tight curvy ass make her a real hottie! But then, with my sister lying on her stomach, I couldn't see her tits anyway.

Creeping a little closer, I still had that mirror view, but I also had a direct look up between my sister's legs. And I sure hadn't expected to find myself staring at my sister's pussy, or to discover that she kept it shaved completely bare. But then, I wasn't expecting to find her lying naked between her girlfriend's legs either! Now I don't mean to whine; only, neither angle gave me a view of what Tracy's tongue was doing to Julie's pussy. Tracy had squirmed in closer, and then just gone straight for it. And whatever she did it sure didn't take her long to turn Julie's giggles in to a breathily gasped "ooh...ooh...God yes...yes, like that!" And considering she'd seemed reluctant, it surprised me when Julie grabbed a double handful of Tracy's hair. Oohing and aahing, she held Tracy's head in place, like maybe she was afraid she'd stop or something.

No worries! Nope, because what Tracy did was, slide her hands under Julie's thighs, lift them, and push them even wider apart. Awesome, because then I could clearly see my sister's tongue in action. Tracy still held Julie's thighs pushed wide apart. So when Julie let go of her hair, and used her fingers to fold back her pussy's labia, I could see the darting tip of Tracy's tongue race, flicking over one thoroughly exposed bit of very tasty, and very wet looking pussy.

My towel had fallen away, back when my cock first sprang to rigid attention. But, it wasn't until I saw Tracy start tongue fucking Julie's pussy that I reached for my cock. I watched my sister's tongue popping in and out of that tight little opening. And it sure had me wishing I was up there between Julie's legs, furiously pumping my cock in and out of that pussy. But I couldn't help wondering; if there positions were reversed, would I have the balls to crawl up between Julie's legs? I figured, no way would I pass up the chance to bang Julie, and for sure not if I'd get to watch her eat my sister's pussy while I did it!

Tracy was giggling when she released Julie's thighs, pulled back, and lay there with her chin resting on her hands. Then, almost sounding dreamy , she explained "Fuck Julie, I love doing it! Honestly, it's a total turn-on! And seriously Julie, if you don't reconsider, you're an idiot!"

"Yeah, yeah, we'll see," Julie told her, sounding like she meant it, when she added "Now do it to my clit some more...Jesus girl, you almost made me cum!"

Instead of the smartass response I expected, Tracy "blurted out a surprised sounding "Really, no shit!" And then wrapping her arms around Julie's thighs, my giggling sister teased "You want to cum...really? Hey, I can do that!" And unfortunately, for several long minutes, I couldn't see any more of Tracy's tongue, or Julie's pussy either.

Still, it sure didn't look like my sister's novice tongue was going to have any problem delivering as promised. So while I stroked my own cock, I watched Julie wriggle and writhe. My sister held her girlfriend pinned down, her head whipping back and forth, as she alternately whimpered and pleaded. And then suddenly I was listening to Julie scream "More, more...yes, oh God yes...you're going to make me cum!"

Only I figured Tracy backed off way too soon. Seriously, Julie was still gasping out yes's, her back was arched, and her outstretched arms were quivering a foot off the bed. And when Tracy released her thighs, and pushed herself in to an upright kneeling position, Julie cried "Hey, don't stop, come on, again...yeah one more!"

When Julie tried giving Tracy an encouraging nudge with a foot, Tracy caught it. Then she grabbed the other one, ordered "Leave them right there," and positioned them against her shoulders.

Now that was fine by me, because it gave me an absolutely terrific look at Julie's practically dripping wet pussy. Seriously, even her thighs were glistening with her juices! Then Tracy, with just a hint of sarcasm, asked "So you won't do me huh...yeah, but you want seconds?" But she was giggling when she added "Well it lucky for you that I just happen to really like eating pussy, now isn't it?" Only, at the same time, she was running her hands down Julie's inner thighs. Using a thumb and finger to spread Julie's labia apart, without hesitating, Tracy pushed two fingers in to her exposed vagina. Only when Julie bucked up to meet her next hard thrust, she yanked them out.

Julie squawked an unhappy sounding "hey, what the fuck!" But Tracy was already swirling her fingers around her vaginal opening. 

All I could think, was no fucking way, when Tracy ordered "Come on Julie, let see you fuck my fingers... yeah do it, fuck my fingers!" And surprising the Hell out of me, Julie started bucking her hips up, rather energetically fucking Tracy's fingers!

A hand pressing against Julie's belly and Tracy's barked "Enough," put a quick end to that bucking! And then, as she started to piston her fingers in and out, she reached in, and began rubbing a finger tip over Julie's clit.

As soon as Julie started imploring "Yeah I like that...yes, do that," my tease of a sister stopped! Tracy dropped back on to her stomach, and her face disappeared between Julie's thighs. And even if I could only guess about what her tongue was up to, I could still clearly see her fingers pumping in and out of her girlfriend's vagina. And then there wasn't anymore almost about it; because Julie was screaming "I'm cuming," over and over again in fact! She didn't gush or anything, but by the time Tracy stopped finger banging her, my sister's hand was shining, and wet clear to the wrist.

I didn't know what to think! Maybe they might just decide to call it a night, or were they just catching their breath? But what I did know was that I sure didn't want to get caught playing voyeur, especially with my dick in my hand. So, I grabbed for my towel, intending to beat a retreat. Only I banged an elbow against the wall, and hadn't even straightened up, before I heard Tracy yelling "Robert...its you isn't it...oh you bastard!"

Slinking away was out of the question, even if my hard-on had already deserted! But my sister started to laugh, so I didn't panic, not quite anyway!. So hoping I didn't look half as embarrassed as I felt, I wrapped the towel around my waist, and walked in to Tracy's bedroom. And yeah, I felt like a total dork!

I was wearing that dumb towel, and they were standing there bare ass naked. At least Julie looked embarrassed, but Tracy had her hands on her hips, and was laughing hysterically. Shrugging, I gave them my winningest smile, and told them "Sorry, but once I saw what was going on; seriously, its not like I could walk away!"

I figured I was forgiven, when Tracy said "Yeah sure...ok, so what the fuck...anyway, what's the big deal?" But then she pointed an accusing finger at Julie, bitchily informing me "Only gosh, its too bad you won't get to see her going down on me...because...yeah, she doesn't want too!"

Still blushing, Julie fired back, pointing and exclaiming "Hey, I'll tell you what's too bad...really, just look at that big old bulge...I mean wow, , come on, don't you want to see what the shit's hiding?"

Catching me off guard, Tracy reached out, and tore that hastily secured towel away. True or not, it was embarrassing hearing Julie's "Ooh, look at that...oh fuck Tracy your brothers hung!" But, it was a total turn-on too!

And even if it was my sister chiming in with "Yeah big...fuck, and hard too," it was still pretty hot!

But then she was behind me, with her arms around my waist, and teasing "What do you say Julie...hey, if you're too chicken to do me...maybe you'd like to go down on Robby?" Only, it was pretty damn obvious, so she didn't need to have her fist wrapped tightly around it, when she told a staring Julie "Ooh, yeah Robby's cocks real hard alright!" Giving my ass a playful swat, Tracy plopped down on the edge of the bed, before mercilessly coaxing "Come on Julie, do it," reminding her girlfriend "Really, you're always telling me how much you absolutely love sucking cock...yeah, so go for it already!"

No way, I told myself, she'll never do it, not a chance! But I was wrong!

With a shrug of her shoulders, and a cheery "Oh, what the Hell," Julie dropped to her knees in front of me. And after Tracy's razzing, I figured I was in for Julie's vest effort. And I liked that she never used her hands, only a slowly flicking tongue and a pair of soft lips. But, her dancing tongue had licked and teased its way up from my balls clear to the jerking tip of my cock, and back down again, before I ever got to feel those lips. Julie kissed my balls, and took her time kissing her way up my cock's shaft, before she kissed the throbbing head of my cock. Those soft lips closed around it, drove down, swallowing half my hard thick length. Only, even though she pounded her lips up and down, popping a glistening head in and out of her mouth, she never managed to make it much more then half way down my cock's shaft. Unfortunately for poor Julie, that left her wide open for my sisters ribbing.

At least Julie had a big mouthful of my balls, so it could have been worse, when Tracy said "Wow OK, you're pretty good alright...only gosh, aren't you going to...you know...like deep throat it or anything?"

It went back and forth between them, with Julie saying "Right, and I suppose you could?"

Tracy answered "Of course, piece of cake!"

Not buying it, Julie told her "yeah well, brother or not, I'd sure like to see you try...fuck yeah, I'd be impressed!"

"Un-huh," responded my sister, grinning as she asked "Really, impressed enough to try a little pussy if I do...yeah, that'd work!"

I figured Tracy was just kidding. Only, it was real obvious she really wanted Julie to go down on her. So while I watched Julie trying to make up her mind, I was thinking; OK, it's only oral! And OK, I could imagine myself looking down, watching my cock sliding in and out of my sister's mouth, sort of anyway. But picturing myself shooting a load of cum in to her mouth, wow, I just didn't know! Only, no one was asking my opinion anyway!

Mind made up, with an emphatic clap, Julie announced "Fine then smarty, you're on!"

Tracy didn't say anything, just slid to her knees beside her girlfriend. And then, without any hesitation, my sister leaned in, and began popping the head of my cock in and out of her mouth. The tease paused, with just the head in her softly sucking mouth. And then in one smooth maddeningly slow move , she slid those soft lips down, all the long way down. Effortlessly holding me fully deep throated, her eyes darted back and forth between Julie's face and mine . Satisfied, the show-off put her hands behind her back, and began absolutely slamming her mouth up and down the full length of my cock. And every single hard downward thrust drove the head of my cock deep in to her throat.

With Julie squealing "Oh fuck, oh fuck, I just do not believe it," I exploded a monster sized load of cum straight in to my sister's throat. Her eyes went wide, but Tracy took it, grabbing my ass, and fucking my cock with her mouth. She didn't slow down either, not even when one spurt went wild and ended up splashing across her cheek. So what had I been worried about? It turned out that I liked seeing my sister with a big mouthful of my cock after all. Yeah, and I liked watching her gulping down my cum even more!

There was nothing half way about that blow-job either. And when my sister's tongue whipped out, swiping up the last bit of cum oozing out of me, I sounded off like Julie, whooping a loud "Oh fuck...yes!"

Snickering all the way, Tracy got up, crawled on to the bed, and stretched out with her head on a pillow. Cheerfully calling out "My turn," Tracy spread her legs, and pointed a jabbing finger at her pussy.

Brushing past me, Julie whispered "Yeah well, I want another chance!" But then she was kneeling between my sister's legs and staring down at her very wet, and very, very bare pussy.

Both sounding, and looking incredibly nasty, Tracy spread that glistening pussy open with her fingers, inviting "come on Julie...trust me, you're going to love it...so...like, eat me!" And as soon as Julie dropped down, Tracy settled her feet up on her shoulders. Taking advantage of my good view, I was right there on my knees, eyes fixed on the darting tip of Julie's tongue. She went right for it too, barely pausing to swirl her tongue around my sister's opening, before she dove tongue first in to it. Backing off she licked her lips, stuck her tongue out, and began bobbing her head.

Awesome, so I watched Julie tongue fuck my sister, making her whimper and writhe. And I got a kick out of Tracy's gasped "Told you so...ooh, oh God yes, do that...ooh, ooh...yeah, oh you love it alright!"

Not taking any chances, Tracy had her hands in Julie's red hair when she breathlessly panted "OK, OK...you can stop if you don't like it!" But of course, Julie didn't stop! Instead, she brushed Tracy's fingers out of her hair, and put her own fingers to work . And that time I had an awesome close up look, as Julie pushed a pair of fingers deep in to my sister's wide open vagina. Even better I was close enough to see the tip of her tongue flicking over Tracy's clit. Julie seemed to like twisting her fingers around deep inside my sister, at least when she wasn't furiously pumping them in and out of her! No doubt about it, they both liked it; especially, when Julie started teasing Tracy's visibly erect clit with the lightly flicking tip of her tongue!

Tracy was cuming hard, and being loud about it too! And she sure didn't seem to mind pleading, frantically insisting in fact "Oh shit Julie, don't you dare stop...oh God, oh god...fuck , I'm cuming!" Stop, was she kidding? Julie's tongue was a blur, and it didn't slow down, even when Tracy started begging for her to stop!

I was hard again; so, no wonder I noticed that Julie's cute little ass was up in the air, practically inviting me to take advantage of it. So while my sister came all over her girlfriend's face, I swung around, and knelt between Julie's legs. She didn't stop me when I grabbed her hips and pushed the head of my cock right up against her opening. And when my sister started screaming "Yes," after "Yes," I did think about holding back! But, looking down past that sweet ass to where the head of my cock nosed against her opening; I knew, no way was I waiting! So, while Julie sucked on Tracy's clit, I drove my cock deep in to the fiery wet heat of her exquisitely tight vagina.

Not having a problem fucking a chick for my own selfish pleasure, I didn't even mind being more or less ignored! Besides, I knew I wasn't going to last long. But while I lasted, I intended to pound all the hard cock in to Julie that I could. Only, I made the mistake of looking down. And there was my amazing sister, the girl I was fucking munching away on her pussy, while this big glob of my cum glistened on her face. And I totally lost it! I banged Julie so hard that she's probably lucky I didn't push her head right in to Tracy's vagina. And when I heard Tracy cry "Yeah fuck her bro...yeah...go for it," well fuck, I shot off! But I went right on slamming thrust in to Julie, just as fast and as hard as I could hammer them home!

I figured it was my cock jumping and jerking deep inside her , while it tried to pump her full of cum that got Julie's attention. Or, it could just have been my energetically screamed " Fuck, fuck...oh fuck yes, I'm cuming!"

Whatever, she stopped working over my sister's pussy long enough to yell "Hard...yeah fuck me...go for it,...cum in me!" Only, I'd already done that! But I figured it was still early, and who knew what might happen later!

I Caught My Sister Muff Diving Ch. 02



Some summer break, huh! I was on my knees, my fast shrinking cock sharing space with the load of cum I'd just pumped in to Julie's vagina. And, I was grinning down at her best friend, who just happened to be my apparently utterly uninhibited, and right then anyway, supremely satisfied looking sister Tracy! And why not; after all, the girlfriend with the pussy full of cum had just licked and finger banged her through more orgasms then I would have believed any one girl could have!

Earlier, when a night out with my buddies had turned boring, I cut it short, and headed for home. And that just might have been the best decision of my young life! Back at home, and after a swim, I was headed for a shower, and that's when I over heard my sister trying to talk Julie in to some playful girl-on-girl experimentation. So, from a spot in the hall, I watched in the bedroom's mirrored closet doors, while my muff-diving sister discovered the thrills and joys of munching on a little pussy! Catching on fast, she quickly had a reluctant Julie screaming, and even begging for more! Well I got caught, and of course with my dick in my hand! But luckily the girls didn't freak, Julie barely even blushed, and it looked to me like my sister actually got a kick out of it. Anyway, Julie kept shying away, refusing to return the favor and go down on Tracy. But when Tracy caught her staring at my hard-on, she teased her until she agreed to go down on me instead. Only as good on the old skin flute as Julie was, she just couldn't manage to deep throat me! And when my smartass sister wouldn't stop razzing her, Julie finally told her to put up or shut up! Well daring my sister is dangerous, and Julie compounded her error by agreeing to try pussy, if Tracy actually had the balls to go down on her brother! And who knew; but, it turned out exploding cum in to my sister's mouth was a real turn-on!

Anyway, after I pulled out of Julie, I flopped on to my back, tuning out the giggles and their back and forth chatter. But my ears pricked up, when I heard Julie say "Oh really, well smarty, maybe you'd like another helping of Robby's cum! Yeah, and it just so happens that I know just where you can get some too! Un-huh, and I can even deliver it with a side of that pussy you enjoyed so much too!"

Playing it safe, I was already on my feet, when Tracy challenged "Deliver...oh really?" And it was on! Shrieking and squealing, they wrestled, tickling, pinching, and even sneaking in the occasional kiss! Well I figure Tracy took a dive; otherwise, no way would Julie have ended up sitting on her face! And pretty quick, Julie's giggles had turned in to panted gasps! Yup, and that's when Tracy's playful shove launched Julie's squirming ass off her face. And considering the copious quantities of cum decorating her face, I figured Tracy had been a lot more interested in tonguing Julie's clit, then in scarfing up a second helping of cum! Well I was to busy gawking to laugh, but not Julie! But a couple of vicious whacks with a pillow put a quick end to that! And then, when the girls decided they needed to freshen up, I split for the kitchen.

Reminding myself that the night was young, I popped the top on a cold brew, and contemplated the possibilities! And then, figuring I'd given them enough time, I started back. But when I heard the shower running, I stopped, but decided to peek around the doorjamb, just in case. And my heart just fucking stopped! My sex crazed sister was lying there, naked; knees bent and splayed wide open! Yeah well, she was also pumping a big, thick, neon blue dildo in and out of her pussy with one hand, while she fingered a clit that even from the door I could see was all puffed out! I couldn't tell how long it was; but, there sure was an awful lot of it sliding in and out of my sister!

Tracy saw me, and called out "Hi Robby, pretty fucking wild night, huh?" But she didn't stop, and I was beginning to think my sweet little sister really got off on having a live audience! Anyway, she giggled, and slowly slid what I figured was maybe ten inches of dripping wet dildo out of her pussy. Stupefied, I stared while she popped its big, blue, wetly glistening head in and out past the dark rosy pink of her pussy's lips. And then blowing what little was left of my mind, she watched me watch her treat that blue dildo like a freaking ice-cream cone! Tracy stopped lapping up her own pussy's juices long enough to ask "hey, you could return the favor you know, or don't you go down on girls?" Well yeah, I did! Only, never on one shaved as absolutely bare as my sister's was! And with my exhibitionist sister's so invitingly exposed, well, the prospect was practically, OK, it was utterly irresistible! And when the nasty minded little tease lifted her legs, spread them wide, and used her fingers to spread herself open, well fuck, I damn near dove head first in to glistening pink!

Kneeling between my sister's legs, I couldn't help thinking I was about to do something I'd fantasized about doing, oh say, ever since about the first time I'd jerked off! The shower shut off, Tracy pushed her blue dildo under her pillow, and in a voice that was a breathy whisper, she ordered "Now Robby!" I slid on to my stomach, and slid my hands up along her long tan thighs, gently pushing them even wider. But even before my lips melted in to the soft smooth heat of her pussy, Tracy was chanting "Oh God, oh God, oh God!" And right then, all I wanted was to slide my face all over that hot, slippery smooth wetness! But Tracy pushed her hands in to my hair, breathily insisting "God yes, do it Robby, use your tongue!" So with my sister tugging on my hair, I slid my tongue in to her opening! And what a fucking turn-on, because pushing in to her was like sliding my tongue in to liquid fire! Ramming my tongue in and out, I swirled it around just as far up in to her as I could jam it! Yeah, and I loved the taste of her, and that she was so much wetter then any of the other girls I'd gone down on! Well Ok, and I would have had my tongue reaching for her clit, even if my impatient sister hadn't yanked my hair, sounding like she meant it , when she ordered "Bastard, stop teasing, and make me cum!"

It was right there, and unmistakable even without Tracy's gasped "Yes, there, there!" Still, I forced myself to slow it down! So, while I explored her clit, teasing and experimenting, I watched and listened to her reactions. Oh sure, but fast, and fast right on her clit too, was what her tugging hands and a gasped "yes, like that, yes," demanded! So, I went for it, furiously whipping my tongue over my sister's silky smooth nub. Well that had her chanting "Oh, oh, oh, oh yes, more, more!" Only that hair pulling was beginning to bug me! Yeah, and the way Tracy had her hips bouncing made it hard to keep my tongue on target too! So, I stopped licking clit long enough to bat her hands away, wrap my arms around her thighs, and pin her bouncing ass down! And that's when I noticed Julie was back, and sitting on the edge of the bed.

Ignoring Julie, and with my sister wrapped up tight, I began racing the tip of my tongue in fast figure eights around her clit. Well that had Tracy trying hard to buck, and screaming her fool head off, as she loudly and repeatedly demanded "More, don't stop!" Right, as if I was about to stop, and for sure not once I heard "More, more, that's it...fuck yes, I'm cuming!" But hey, I waited until her screams faded in to panted gasps. And then, I started sucking her clit! Gosh, and off she went again, but this time with Julie clapping and whooping. And, what can I say? Even while I tongued my sister through what sure seemed like one continuous, unending orgasm, I was thinking about her noisy girlfriend. Well Ok, so it was more like I just hoped she wanted her own ride on my tongue!

I was still caught up in the thrill of making my sister cum, when Julie interrupted. Beating on Tracy's stomach like it was a bongo drum, Julie complained "Enough you greedy piggy! Yeah, if you know what's good for you, you'll share!" Well, besides my serious need to piss, that was just about the only other thing that could have pried my tongue off my sister's pussy! So I was hurrying back, anxiously anticipating that second helping of pussy, and I walked straight in to one of those dumb déjà vu moments! At least it sure sounded like a rehash of earlier, when I'd overheard Tracy trying to cajole Julie in to going down on her. Only, whatever Tracy was trying to talk Julie in to it sure didn't involve pussy. Nope, she was trying to encourage Julie to "Just go for it," insisting "yeah, you'll love it, fuck, I sure do!" And always helpful, she offered "Come on, I know Robby will do it if you ask him, shit, I'll ask him if you're chicken!"

Having heard enough, I walked in. Poor Julie, turning scarlet, she buried her face in a pillow! But hey, she was giggling! And of course my sister wasn't about to let up, oh hell no! She turned to me, and asked straight out "Hey Robby, you like doing anal don't you? That giggling chicken-shit over there wants to try it, but she's too shy to ask! So what do you say, huh? Want to take her virginity?" Well yeah, you bet I did! But then, I sure wasn't about to confess that I'd be giving up mine too! So I stood there dry mouthed, hoping my nod, and an instantaneous hard-on, made it a unanimous yes!

Whooping like a loon, Tracy sprang up, and began rummaging around in a dresser drawer, coming up with what sure looked like a bottle of lube. Tossing me the bottle, and jumping Julie, she tried to wrestle the pillow out of her hands. Well that left my sister straddling her girlfriend, with her killer ass wagging suggestively. And what do you know, winking at me from right there above my sister's pussy, was the dusky pink of her own puckered little anal opening. And let's just say the thought of sliding my cock in to that so sweetly exposed asshole took its sweet time crossing my mind! And never mind all my kid fantasies!! Honestly, up until earlier that night, when I'd watched Tracy not only swallow my cock, but a big mouthful of cum too, I'd never believed anything sexual would go down between my sister and me! But then, guess who was thinking, and yeah hoping, that if a little oral was cool, well then, why not a little anal action too? Well that's what I was telling myself anyway, when she sent that pillow flying, and dove in to a whispered huddle with a giggling Julie.

When Tracy jumped up and did a fist pump, I figured she'd convinced a grinning, but still reluctant looking Julie to go for it! And I didn't know what to say; which was OK, because Julie was telling Tracy "Yeah well, you are so going to owe me, yeah, big time!"

Unperturbed, Tracy shot back "Yeah, and so what? And besides, you're going to love it anyway!" And then, snatching the bottle of lube out of my hand, she ordered "And stops stalling! Come on, Robby wants you kneeling on the edge of the bed, so move it already!" Right, as if I'd been thinking that far ahead!

When Tracy had Julie positioned to her satisfaction, not only was her ass perfectly positioned, but she had a terrific view in the mirrored closet's doors too! OK, and as she watched my grinning sister smear a handful of lube over my cock, maybe she looked a little apprehensive! Oblivious, Tracy slapped my ass, squealing "Go for it Robby!" But then, she cried a frantic "Wait, wait, oh fuck, not yet!" So, while I waited, I watched Tracy push one well lubed finger in to her gasping girlfriend's asshole. Yup, and that would be all the way in! Finger pistoning, she told her wide eyed girlfriend "See, piece of cake! Honestly, you're just going to love it!"

No surprise, but it took a cracking swat to Tracy's ass, and a growled "Move it sis," before she got that finger out of my way! And Tracy was still rubbing her ass, when I stepped up and grabbed hold of Julie's hips. But she was right there, bent over and watching intently, when I pushed Julie's ass cheeks apart. So, when I gave my hips a gentle flip, we both saw the glistening head of my cock pop out of sight.

Julie barely even gasped, but Tracy shrieked "Yes, oh fuck, I just don't believe that...again, do it again Robby!" hey, it seemed like a good idea, so I popped it in and out a few times! And not that I needed it, but when my overly excited sister suggested "Now Robby, do it...yeah, fuck her hard," I took her advise anyway! Anxious, who me? Hey, I'm pretty sure I gave Julie time to object! Yup, and then I absolutely slammed my remaining six inches of cock in to her! And so what if she was taking a third or fourth hammering, balls deep thrust, by the time she gasped "Oh God...OK...yeah Ok...Oh God, I'm so full!" Well yeah, she sure was, and I loved it!

Amazingly, somehow I actually managed to slow it down! Yeah, well it was worth the effort! Sure, because the entire length of my cock was wrapped up tight in this incredible slick wet heat! Un-huh, and I could actually feel the sweet squeeze of the gentle spasms rippling through Julie's ass! So, there I was savoring the erotic thrill of being inside a girl's ass for the first time, driving in one long slow stroke after another, and that's when I spotted Tracy snaking a hand down between Julie's thighs. Suddenly, and what a surprise, I felt my sister push two fingers in to Julie's vagina! Yup, I knew it was two right away, because I could feel them stroking against my thrusting cock! Never mind fantasizing, I'd never even imagined being part of anything that fucking hot before!

Obviously as excited as me, Tracy practically squeaked "Oh God Julie, I can feel his cock!" Well, that was OK! Sure, but when she told her giggling girlfriend "Oh my god, I wish I had one of those strap-on things the lesbian's wear," I nearly came right then and there! Anyway, I sure didn't need to hear her ordering "Fuck her Robby...you know, really fuck her," because I already was!

Maybe I missed the question; whatever, I heard Julie loudly, and yeah enthusiastically telling my sister "Oh Hell yes, I love it!" OK, but when she started wriggling her ass, and screamed "Hard Robby...yeah, I love it...yeah, fuck my ass," well, that about did it for me! But hey, I was still slamming in fully penetrating thrusts, when my fucking cock just exploded! So there I was, blasting shot after shot of cum deep in to Julie, and she's shrieking "That's it, yes that's it...more...oh God yes, cum in me!"

Well by the time I was breathing again, the girls were huddled up, whispering and giggling of course! Tracy gave me a look that told me the party was over, and sweetly suggested that I might want to take a shower. And just in case that hadn't made it crystal clear, her "and close the door behind you, OK Robby," sure did! And I almost didn't care! Nope, because I'd already come in three fantasy shattering ways that night, and figured I'd survive without a forth! Who knew, but there was a forth, and it was only a couple of hours away too!

My eyes popped open, and it wasn't an earthquake after all; nope, just my naked sister bouncing on the foot of my bed! Well I tried for a ferocious scowl; but like I said, my sister was naked, and she's hot, and all I managed was a grin! OK, so she was grinning too, grinning and staring hard at the morning wood tenting the covers. Giving it a playful backhand Tracy asked "Fuck Robby, do you always wake up with one of those?" Gosh, and I was still nodding, when she pulled the covers back. Yeah, and sister or not, it's still a fucking turn-on, when a hot chick's licking her lips and staring at your cock! Only Tracy sure looked serious; especially for a girl holding a big fistful of hard cock, and excitedly cooing "Yummy, so I've found this nice big cock, it's all hot, and oh god, it's so hard too!", And not that I could do anything about it, but I listened to her complain "Oh sure, and naturally it would belong to my idiot brother!"

Tracy reached down, and came up holding a bottle of lube. And when she swung around and knelt between my legs, I sort of figured I was in for a hand-job. Well I did, until she blushed, and buried her face in her hands. But it was all for show, and she was giggling when she said "Oh Robby, I'm so bad! I lied...and poor Julie would like kill me or something if she knew I'd never done that anal thing! OK, so you've got to help me, right?" Well my mind was still stuck somewhere between huh and what, when she began slathering lube over my cock. So yeah, I figured she had something other then a hand-job on her mind!

Last night, when Tracy was wrestling with Julie, and her very tasty ass had looked so inviting, I'd decided; damn straight, if I ever got the chance I'd take my sister's ass! Well, figuring that time had arrived, I assumed Tracy would want me behind her. Only, when I started to move, she Pushed me back with a dramatic sigh, and a giggled "No, wait!" And then she was straddling me, face buried in her hands again, and giggling out an almost embarrassed sounding "Don't you dare laugh Robby; but...ah...so ah...would it be OK if...you know, if I do it?" Oh sure, like there she is, the head of my cock already jabbing against her asshole, and what, I'm going to say no?

Settling back, I laced my fingers under my head, and told her "OK then, go for it sis!" I was doing a silent count down, intending to launch a thrust up in to her at zero. But, Tracy gave a little bounce at three that popped the head of my cock in and out of her asshole. She did it again, and took a little bit more cock. And then, looking like a diver, she lifted her hands high above her head, grinned down at me, gave another bounce, and rode my cock all the way down.

Muttering "Ooh wow, Julie sure had that full thing right," she braced her hands on my chest! Hips slowly rotating she lifted, and let the head of my cock pop free. And then, while I struggled to just lay there and take it, I watched her pump herself up and down my full length about a half dozen times! Yeah, well every roundtrip slammed down faster and harder then the one before it! OK, But I had something even harder, faster and a whole lot nastier in mind!

Managing a grin, and trying to sound casual, I asked "So you like it huh?" And when I got an enthusiastic nod, I reached for her ass.

But when she sarcastically purred "Ooh, so Robby thinks he can fuck me hard huh," I decided to go for it! So instead of using my hands to simply bounce my sister up and down my cock, I rolled her on to her back. And while she squealed I got her legs up over my shoulders, leaned forward, and pinned her hands above her head. And then as I drove slow deep thrusts in to her, I told her "You know sis, Julie was my first anal action! So gosh, I guess I should say thanks, huh!" Well eventually, my sister stopped struggling, and even stopped screaming and calling me names! Sure, but that was after I made like a pile driver, and started slamming ferocious balls deep thrusts down in to her ass! Of course Tracy hadn't actually stopped screaming; nope, it's just that her beasts, bastards, and assholes were replaced with mores, yeses, and harders! Too bad, but she didn't get much more of that more part of things! But hey, just like in the porno I'd learned that position from; I pulled out spewing an absolute gusher of cum all over her tits and belly! And if she hadn't started to laugh, I don't think I'd have had the balls to let go of her hands. But silly me, I did, and she immediately pulled me down in to that see of goo.

Stopping on her way out, the imp leaned against the doorjamb, and told me "Gee Robby, you're a mess! But hey, you can use the folks shower, OK?" Then giving me this look of pure innocence, but sounding anything but, she asked "So ah...you and your buddies are still playing poker here tonight right? Gosh just think Robby, all those boys, and..."

Oh we played poker that night alright, and sometimes without cards too! But then, that's another story, and one I can't wait to tell!