"Stories 18+" Lucky Slip

Stories 18+ Lucky Slip
She was singing in the shower again. Boy did I hate hearing her sing in there when she knew I was waiting on her. There was always my parents' shower, but we tended to leave that one alone for whatever reason. So I stood there, waiting, pacing and generally worrying about whether I'd make it out to my job this morning. Sure I didn't have to be there right on time seeing as how I was running my own thing during the summer for a while now, but it was the principle of the thing. I had commitments, and she was headed god knows where this morning. Believe me, this was not the first time.

Judging by tight and tiny workout clothes lain out on her bed, she was heading to the gym and was likely just doing some of her "beauty" exercise: designed only to maintain what was already near perfect. Oh yeah, and there was that; the fit, 18-year-old tart, my little sister Emma, singing the sweet notes that were breaking steadily through the sound of the falling water, was drop-dead gorgeous.

It started with the face: a cute but sultry combination of deep blue eyes, great cheekbones and a set of pouty, pink lips. Her dirty blonde hair often fell messily down, and sometimes in a tight braid. Now it would be wet and hanging down to her shoulders and her body below. There probably aren't words for how amazing her body was, but either way, she had breasts made up of the perfect handful, a taut, smooth stomach, and never-ending slender legs coming from a spank-able behind.

She was rarely discrete about her prancing around the house, as she would be now if she walked out in one of those ridiculously small bath towels we owned. (I still don't know where our mother could have possibly bought them) Sure, I felt guilty, but I assured myself that my deliberate avoidance of concentrating on how hot my little sister was was enough to balance the dreams I often had of her. Even my peripheral vision couldn't un-see that half-naked angel bending down to take clothes out of the drier in a bra and panties on Sunday afternoons. And more than once did I see an unmistakable smirk on her face when my mouth dropped open wide as she flitted across the kitchen in near-nothing as I was making myself breakfast.

So there I was, waiting outside the door like a total sucker when I finally decided to address the problem, and whether it was my impatience or my considerable need to pee that led me to it I don't know. I jiggled the doorknob just so (living in the same place for ten years you pick up a few things) and swung open the locked door, making right for the porcelain. I took care of business quickly, happy to have gotten there before I had an accident at 22 years old. It was then, standing there, that I noticed the silhouette of my little sister on the curtain.

Whatever the material was, it probably wasn't designed for much privacy because I could see enough to get blood pumping to my lower half immediately. For crying out loud, I could even make out the pink of her nipple as she arched her back and ran water through her hair. I looked away, remembering my resolve. But there was nothing to be done; the most naked view of my sister I'd ever gotten had penetrated my defenses. My cock was all the way hard before I could do anything. Combine that with my accidental reflex to flush the toilet and I was about to be standing there with a raging boner just as my little sister realized I was in the bathroom.

She teased me enough about any girls I could be seen with, or my wide eyes when I turned the corner to her room in the middle of her undressing; God knows what she'd say about her big brother getting hard over his own sister. So I did the only thing I could do, sat down quickly and leaned forward to try and conceal my arousal. Just as expected, Emma poked her head around the edge of the curtain within seconds of the flush. She did a poor job of covering what the curtain revealed; that certainly wasn't going to help the situation. 

"What the fuck Andrew!" she hollered

"I had to go and you are taking so god damn long, I just couldn't wait anymore!" I piped back.

"Ugh you are such a jerk, you never give me any privacy," she steamed

That was a laugh - her prancing around the house was far from asking for privacy.

"You better not look," she said as she disappeared behind the translucent shroud once again, "I've seen you do it before, hmph!" She said the second part a little quieter but I still heard it. 

Seconds later, when I was practically begging my penis to calm down, the water suddenly shut off and I could hear Emma drying off and sliding back the curtain before I could do anything but hunch to try and avoid her seeing my stiff shaft. She led with her long, smooth leg before I could see the tops of her breasts threatening to free themselves from the snugly wrapped towel. I was beginning to doubt I'd get through this; her body was working overtime against me.

And then there it was, the little bit of water she'd dripped on the floor before when she'd pulled back the curtain to curse me out was just below her lead foot. Already lifting up her other foot to clear the tub, she was doomed. The heel slipped with an audible screech and Emma was heading backwards fast and directly toward where I sat. I didn't know what to go for in my attempt to catch her; I removed my hands from their shielding of my erection. I reached out to grab her arms as they came for me, but her unbalanced stance sent her sweet bottom first. It slid right by my outstretched arms and down, I just missed it and I could only attempt to cushion her fall the way I did. And then she touched down...

It was an impossible chance, lightening striking the same shark attack twice. And yet, when I was just about to ease her to a stop, the final 8 inches of her fall made all the difference. My head popped just between her lips, and a second later it was buried within her. Emma came to rest completely sheathing me, her brother, inside of her.

Silence. Reality was trying its hardest to set in, but the utter warmth, the clasp of her walls, the wetness. Oh my God was she wet. And not 'just out of the shower wet' but more 'now I know why she takes such long showers wet.' "I must have interrupted her," I thought as I savored being engulfed in my sister just after she'd been playing with herself. My hands were on her butt just as they were when I reached out to catch her, and she wasn't even touching the floor. She made one small movement, testing what would happen if she tried to get up, and I'm not sure what she thought of the result.

Though I didn't think it possible, I pushed just a bit forward into Emma when she moved and both of us gasped. My hands unintentionally squeezed at her butt and when my cock found that new place in her pussy she shot a hand back to grab one of my wrists. She clearly hadn't meant to, but I appreciated the sheer emotion of the gesture.

"Andrew......" she whispered between pants.

I waited. I attempted my old, 'avoid the temptation' technique and when I felt her quim pulsing upon me I knew it was pointless. My squeezing fingers pulled Emma closer to me, my shaft slid against Emma's walls and I could feel her fingernails upon my wrist.

"You have to... we have to stop...." It sounded like she was trying my strategy, though her words were only just audible.

".....yes, okay..... you have to get up first." I warned.

At first she didn't move, and then she put her foot to the ground and pushed upward. My sister's tiny hole slid out around me slowly, pleasurably, until she apparently slipped again. I looked around and could see no reason for it, but down she went until her ass reconnected with my hips. I searched her for an answer and only caught a second of the glance she'd sent my way on her look back. However, it was unmistakable as it flashed by, a smile. 

And a naughty one at that, my perfect little blonde sister wasn't as innocent as she'd played, her smile gave her away. I positioned my hands for a bit of different type of help this time. Her hand, still wrapped around my wrist, tightened. My hands indented in her as I guided her just a fraction of an inch from popping out. She cast her glance my way, sending boughs of her luscious blonde hair bouncing over her shoulder. She was sitting more upright now, her back arching, and as my eyes met hers, the wicked grin I observed told me she wasn't about to stop.

She began to sink back into my lap, my rod filling her with its heat, inch by inch. This time she cooed and reached back with her other hand, I was in heaven. The towel fell away from her body and for the second time, my naked, sexy little sister was descending upon my protruding member (intentionally that is). It was so warm, and the sheer tightness of it had me focusing on nothing but the feeling. I couldn't control myself. As she came down to meet me I grasped her all the more firmly and thrust upward to meet her.

"Oh God, we should stop..... oh fuck..... we should not be doing this..........uhhhh," she couldn't even finish the sentence.

I started to move my hands a bit, becoming bolder and hungrier to feel my sister's body. They inched over her hips, which I paused to grasp, feeling her hipbones as I pressed my fingers into her. I massaged her a bit there, causing the slow and steady bouncing she had begun to increase in tempo.

"I thought you were getting up?" I teased, having trouble focusing myself as Emma was sliding herself up and down on top of me. My God, I knew she wasn't but by the tightness of her tunnel I could have sworn she was a virgin.

"Uhhhh.... Fuck you..." She let out with obvious frustration.

"I think you are sis..." I strained, and she laughed.

My hands made my way up to her breasts, finally, and they were all I'd dreamed of. As I took them in my hands they sat there cupped perfectly. I kneaded them, brushed my fingers over her nipples and marveled at their perfection. One of my hands continued adoring her breasts while I wrapped my other arm around her abdomen, forcing her down hard now onto my penetrating rod.

"Fuck you're big.... I can't stop.....mmmmmggghh..... don't stop fucking me." She sounded so sexy, moaning and cooing while talking dirty to me.

I decided to take a little more initiative, pushing myself up from our seated positioning and causing Emma's dainty toes to finally make contact with the ground. As soon as they did, I turned her, with my cock still lodged inside of her, to the sink. Standing now, it was my turn to start fucking my little sister just the way I wanted her. Bent over the sink as she was, she suddenly stood on her tiptoes as I started pushing my thick head in and out of her once again. It was an involuntary gesture, the little spasm that had stood her like a rail for me to shove myself directly up into, probably from all the pleasure I was giving her, and I loved it almost as much as the panting I could hear coming from my ungodly sexy sis.

I reached in front of us once again and took firm grasp of her chest, lodging myself inside her warm pussy as my hands massaged her great tits. She did her best to meet my thrusts, but my desire for her had me winning out and slapping my pelvis against her toned butt. I fucked her like that for a few minutes, my hands alternating between a dominant grasp of her slender neck, soft breasts, toned abdomen and pert ass. I even reached down to massage her clit and send her into a clearly powerful orgasm.

"Ohhhh FUCKKK..... Oh my God, I can't believe.......ughhhh.... my own brother is making me cummmm!!"

And cum she did; the pulsing of her walls around my penetrating member was almost enough to send me over the edge, but I powered through and made her ride out her own orgasm with continuous thrusts inside of her. We looked each other in the eyes in the mirror, watching as my hands worked themselves around her body and seeing each other's wide eyes in disbelief at the sheer excitement and pleasure.

"Fucccckkk...." She whispered as she came down form her orgasm. She was short of breath but had enough to say: "I want to watch, I want to watch your big fat cock going in and out, please?" I wanted to look into her eyes directly too, to watch her watch me press my cock into her pussy and know just how much she loved it. My little sister - the consummate tease and the object of so many of my dreams now in my grasp, I wanted to look deep into her eyes as I fucked her. I wanted this act of incest, which had started out as an accident, to end up with Emma begging for more; now that I was inside of her I wasn't sure my cock would ever feel right anywhere else.

Emma must have felt the same way too, because when I dislodged myself from inside of her to flip her around, her face was laden with need -- the need to be filled up by her big brother's big cock once more. It was she that reached between us and took hold of the head of my steaming rod, placing it at her entrance and saying:

"Oh please Andrew....put it back in me..."

I leaned into her body, my cock head urging its way passed her tight lips. As I began to inch my cock into my little sister's pussy I also lifted her by the ass, my fingers pressing into her firm, smooth cheeks as I put her weight on the vanity.

"Yeessssssssssssss.... Show me Andrew, show me that big thing of yours going in your naughty little sister....oooohhhh." I did just that, bottoming out in her inescapable warmth before retracting and entering her passage once again. First we were both looking at the penetration, the unbelievable and erotic incest we were both losing ourselves in and then upward. My eyes scanned her body, hers mine. When we reached our lips I leaned in, locking eyes and kissing her with reckless abandon. The kiss said everything we couldn't, that Emma's teasing had been only about torturing me, and that my dreams were fighting to manifest themselves. Emma's look was one of desperation, I could see another orgasm welling up inside of her, and I wanted her to come with me, I was so close.

"Ohh baby, ohh big bro......please..... I know we shouldn't but....uhhhh..." she trailed off.

"What Emma...? I said over hurried breaths, still focusing on sliding my shaft in and out of Emma's pussy. I could watch it flex to accommodate me, her insides making way for the penetrating staff.

She moaned, she tried to catch enough breath..."I could get pregnant......Ohhhhh God, I don't give a.... fuckkkkkkkk......oooooh." I pushed in deeper on that one, spurred on by what I could tell my little sister was implying over an escalating orgasm.

"Just fill me up baby... yes, yes..... cum in your bad little sis...... I've been teasing you for so long..... I can't believe I've been....uhhhh... missing this!" God she sounded so sexy. 

I was seconds away now and Emma was headed there too. Just a couple more strokes and we'd both be......Wow the feeling was so wonderful. I watched my sister roll her eyes and head back as she started to feel it, my cock pulsing with its first powerful jet of sperm, directly, deeply into my little sisters pussy. She was over the edge, and I held her in my arms as she clutched me and howled in front of me. Another pulse of sperm, my heart felt like it would explode, but I only exploded again into Emma's womb.

It felt like it could go on forever, Emma's spasming body or my powerful sprays of seed. It didn't though, and my beautiful, albeit horny little sister was smiling like the dirty little girl she was while we remained locked together at the hips. My cock softened only a bit, remaining so full of desire for Emma that it refused to disappear. Emma rested her head on my heaving chest.

"Ummmm..... wow.....

"Yea.... That was...." I stuttered to find the words.

Emma finished them for me, "intense...amazing.....wow."

"You are... unbelievable." She blushed when I said that, though I wouldn't have known over her sex flushed face.

Emma felt my cock still hard inside of her, it must have grown because her eyes widened and she said with shock, "Are you serious? Ready to fuck your little sister again so soon? Don't you think we should get like some protection or something."

"Yesss.... " I got out.

But my cock had other plans, the risk of getting my little sister Emma pregnant sent my cock expanding deeper and wider into Emma's slick channel. She flashed me that famous smile, and I knew she wanted it. 

She wanted it three more times that night actually. We fucked on the kitchen table, in the screened in porch and best of all, in our parents shower. I couldn't get enough of Emma's beautiful body and her seductive and sexy personality. We got to protection eventually, but filling my little sister up with her own brothers sperm was all that either of us wanted for a while. We're just crossing our fingers, and I'm still making love to my sister as much as possible every chance I get. The End