I opened my eyes drowsily and saw the bare, broad back of my cousin, Shane, shifting on the pullout bed we were sharing. Along with my sister, Colleen, there were actually three of us on the sofa bed in our grandparents' living room. We and our parents - our father and Shane's mother were siblings - were all visiting for Christmas and with the bedrooms all occupied by the "grown folk" we kids were relegated to the living room to fend for ourselves. Despite having lean bodies that comfortably fit on the queen sized bed, with Shane and me at twenty and Colleen at eighteen the adults thought we shouldn't be sharing the pullout anymore. However for the past few years we had protested and done it anyway because it had become our own little tradition. We stayed up as late as we could watching bad movies and enjoying each other's company until we passed out. I was often the first one asleep and essentially would be dead to the world leaving Colleen and Shane to continue talking over the TV.
As my eyelids fluttered shut again, I heard Shane whisper, "Is he awake?"
The mattress shook slightly as I assumed Colleen glanced over our cousin's body at me. I said nothing and kept my eyes closed intending to allow the sleep that was quickly returning to me to take hold.
"Yeah. He's still out," came my sister's reply.
"You gotta be quieter," Shane said as I felt the mattress shift with greater force as he moved.
Colleen's whisper was harsh when she responded. "Well you gotta go easier with that thing. I told you I haven't had anything that big in me since the last time we fucked."
Upon hearing my sister's words the sleep that was about to overtake me retreated. Now awake and alert, I cracked my eyelids open just far enough to see while hoping it wasn't wide enough for the light of the TV to reflect off my eyes. Looking across the bed, I nearly gave myself away as I suppressed a gasp upon seeing our cousin completely naked and my sister without her pants on. He was situated between her legs hovering over her with his hard cock pointing out of his crotch. While it was surprising to see them in such a position, it was the sight of Shane's cock that nearly caused me to exclaim and reveal my wakefulness. As Colleen had said, it was big but even that word seemed an understatement. Easily in the double digits it was definitely long but it was the girth that made his dick imposing. I couldn't imagine anyone's hand being able to completely close around it. Admittedly, his lean frame along with the shadows from the television light might have been playing tricks with my mostly closed eyes but I didn't think what I was seeing was too far off from what I would see in the light of day.
Shane's tone was mocking when he said, "Well maybe if you had sucked on it a little to get it wet, we wouldn't've had that problem."
"Fine," Colleen said with a huff as she sat up. "But if we get caught, it's your fault."
Shane stood on the mattress and tucked his shoulder length brown hair behind his ears. He then aimed his cock at my sister's mouth while he said dismissively, "We'll be fine. Everybody's out cold."
I watched through my half closed eyelids as Shane sighed and pushed his dick between my sister's full lips with one hand while he grabbed a fistful of her dark brown hair with the other. She must have grazed the flared edge of his bullet shaped head as it passed her teeth because I heard him hiss. "Careful."
It wasn't enough to stop him because he fed a little more length into her before pulling back and setting up a steady rhythm fucking her mouth. Less than half his dick was moving through her but it didn't seem to matter as he closed his hazel eyes and leaned his head back in obvious pleasure. "Oh, yeah. That's it. Suck my big dick."
I could see Colleen's own green eyes roaming appreciatively over his body. After a few moments, she lifted her hands to do the same. Like me, Shane was a little over six feet tall with a genetically provided lean body that had been enhanced with regular time in the gym. Neither of us were exceptionally muscular but we had some decent definition on our bodies and my sister's hands were now tracing the defined lines of our cousin's abs and pecs. Eventually, she left one hand playing with his nipples while the other moved back down his torso, over his trimmed pubic hair then between his legs to his swinging ball sack. Despite the chilly but comfortable air, they hung low and swayed easily in countermotion to his thrusting until she took hold of them. She gently pulled and kneaded them earning a series of soft sighs from him in the process.
After a few minutes Shane suddenly pulled out of her mouth. Gripping his shaft, he raised it vertical while pushing his balls into her face and said, "Suck 'em."
Without hesitation or protest, Colleen kissed and licked at Shane's lightly furry sack for a moment before pulling one of his large orbs between her lips. She couldn't insert it completely into her mouth but it must have been enough because he let out a soft moan and curse of appreciation.
While Colleen worked his balls, Shane began to slowly stroke himself. Both of us were uncut but I was surprised by how much extra skin he had compared to me. Whereas my own covered just the base of my head once I was hard, as Shane's fist moved up along his shaft, his foreskin flowed over his tip completely concealing his cock head. When it retreated, the silvery wetness of precum made the supple skin shine. Intermittently, he began to rub his dick over Colleen's oval face. He pressed it against her nose, slid it across her forehead and occasionally smacked her cheeks with it. Eventually he pulled his balls away from her mouth and replaced it with his dick.
As I continued to lay there spying, I couldn't believe that this was really happening. My sister was sucking our cousin's huge cock right there on the bed next to me with the intention of getting fucked by him. I wanted to believe it was a dream, that it was something being produced by my obviously flawed brain chemistry but the occasional soft sound of suction and the random wet noises that came from her mouth on him were hard to imagine as being fake. Not only that, but I could smell the slight funk of Shane's crotch wafting toward me. There was another scent as well and it wasn't until I saw Colleen move the hand that had been on Shane's chest down between her own legs that I realized it was her pussy I was smelling. Using two fingers, my sister began to play with her inner lips that were just peeking out between her tight outer folds and occasionally dipped the digits inside herself. It was never long but it was enough to make my already hard dick jump a few times at the sight. I was just beginning to wonder how long she would tease herself when Shane pulled out of her mouth and dropped to his knees.
"You must be ready now," he said as he pushed her onto her back. "I can smell you and you look like an addict trying not to play with yourself."
"Then shut up and fuck me already."
Shane smirked as he positioned himself between her legs. "Last time you said that, I put it in you and you squealed."
Shane's words made me realize what it had been that had originally disturbed my sleep. The sound of my sister reacting to the discomfort of what must've been his dry entry was the noise that I had heard just before my eyes opened.
Unfazed, Colleen spread her legs wide for him and said, "Yeah, well now I'm wet and so are you."
"Yeah, you are." Shane had pressed his hard length against her slit and was gently humping against her. With long strokes he dragged his cock back and forth outside of her. Despite the shadow produced by his body blocking the TV, I could see the bottom side of his shaft becoming wet with the juices seeping out of my sister's pussy. He added to the wetness with the slow but steady trickle of precum that left his tip. After a few thrusts he began to smack his hardness against the soft flesh focusing on where her nub was still concealed beneath her folds. Colleen began to writhe and moan softly from the assault and gripped his arms and back as she rolled her hips against him. Over the quiet noise of the TV, the sound of their wet flesh smacking together seemed loud in the otherwise quiet night yet would not have woken me if I had still been asleep.
"Shane. Please. I need you in me." Colleen said breathlessly.