Adam's cock was hard. He had just woken up from a nap, on the couch with his older sister Elle. She was still sleeping and as such didn't notice the evident tent his erect cock made in the blanket they were sharing. With just boxers on, his cock had found its way out of the flap in the front, just the gray fleece blanket between it and the open air. The idea excited him, having his privates so close to complete exposure, the idea of feeling cool air from the drafty window opposite the couch cross the sensitive head of his cock. He checked his sister's sleeping face for signs of waking - a twitch of the eye, a flutter of lashes to signify a rousing from their mid-day, Christmas-break slumber. Seeing nothing there, Adam reached down to his cock and wrapped a fist around it, just below the head. Since Elle had gone to college and he no longer shared a room with her, he awoke each morning and greeted the day with a rhythmic up and down pumping of his erect cock in the mornings. Adam was a senior in high school but slow to develop. He hadn't even masturbated until the last year or so. Compounding this was the fact that he went to an all-boys Catholic school and had never had so much as a female friend, let alone girlfriend. He considered as he stroked his cock that he was perhaps conditioning himself to get hard whenever he awoke. Not a bad way to wake-up, he thought. Careful not to wake his sister with a leg twitch or a groan, he quickly got himself to the edge of that warmth, checking again for his sister's closed eyes as he prepared to grab a tissue from the box on the coffee table.
Much to Adam's surprise, his brief glance towards his sister's face sent a surge from his balls as a dark stain appeared in the blanket, blooming directly above where his cock-head touched the fabric. Startled at the suddenness, Adam jumped a bit, backing himself up against the couch's armrest into a near-sitting position. His cock was still in hand, now exposed as the blanket was pulled off of him by an woken Elle. She was clutching the blanket against her chest, the wet spot now resting on her bare foot as she stared at Adam, his slowly softening cock in hand, briefly revitalized at the idea of this physical embodiment of pleasure now resting on his own sister's soft skin.
"Adam, what're you doing??" Elle demanded, her eyes glued on the strange tableau before her. She kept her gaze fixed on his cock, which Adam found to be particularly exciting. His young cock twitched and surged a bit, dribbling a bit more cum as he ran his hand to the head, involuntarily seeking out that pleasure even as Elle stared.
"I uh...it...it feels good..." he stuttered, aware that he should be feeling some sort of embarrassment, some sort of desire to cover up. But she just kept staring. She kept looking. And she didn't really seem mad. If Adam had been asked to ascribe an emotion to Elle's face, he would have said maybe curiosity, but not anger nor disgust, even as her eyes followed his to the stain on the blanket.
"What's that?" she asked, leaning forward to look at the stain. "Oh my god...Adam, did you cum?" She said the word cum in a whisper, like a secret. He liked that. Her curiosity seemed to brighten and grow as she peeled back the blanket to inspect the dripping puddle of semen, a thick strand stretching from the blanket to her foot.
"Uh...no?" He asked, his face turning red in the face of his own sister inspecting his cum-puddle. Elle made a face. She didn't buy it.
"Wait...were you looking at...?" Elle raised an eyebrow and looked down at herself, and the bit of cum on her foot.
"What? Oh, no, no way. I don't think of anything, it's more like going to the bathroom, I don't even really think about it. It's like a mind of its own down there." Elle giggled. Adam had yet to let go of his cock, which was now nearly hard again. Elle pointed at it.
"So what, you just touch it like that til that happens?"
"Yup. Pretty simple." He took her curiosity as permission to continue, letting his hand slowly glide to the base of his cock, careful not to rush this. It seemed tenuous, this arrangement on the couch. He knew very little about exploring sexuality but it certainly seemed best to keep such activities a secret from his parents, particularly when it was his own sister he was exploring with. Elle was a freshman at a women's bible college in the Midwest, far from home here in Boston, and far from young men who, as her parents insisted, only wanted one thing. Adam thought about the one thing, finally realizing what it was his parents meant by that, as he stroked lazily. This wasn't bad though, right? Besides, they weren't touching - just talking.
"So, do you do this?" he asked, trying to keep the air light, factual. This isn't a sex thing, he thought. Just siblings. Close siblings. Elle giggled.
"Well, not that."
"Ha ha. You know what I mean. Your privates, do you touch them and, uh...cum, like me?" Elle shrugged in response.
"Yeah, I mean...I think everyone does. A few girls at school say they've never but I think they're just worried about not being able to take their vows or something. But I don't really shoot stuff like yours. It's just...wet."
"What?? Like you pee yourself?" This seemed to Adam to be an extreme male-female disparity. Elle laughed, pushing aside the blanket, exposing her bare legs. She was wearing a pair of Christmas themed, red and green striped boy shorts that came up to the crease of her hips, small and just beginning to broaden. Adam thought she looked sexy, but decided against telling her this. He watched intently as Elle brought her hand to the gusset seam of her shorts, placing the pads of her fingers against her crotch and pressing down. His hand moved faster on his cock.
"I just...do this. Rub it." She moved her hand a little faster, eyes still locked on his cock, the head of which was beginning to drip a mixture of remaining cum from his first load and precum from his imminently approaching second.
"Can I, maybe see it?" He asked. He couldn't believe what he was saying, but it seemed completely block-headed not to ask. All he wanted in life, at this moment, was to see his sister's pussy. He felt a twinge in his cock as he imagined Elle's bare cunt displayed before him, imagining rubbing the fluid from his cock-head against her lips and the opening of her tight young hole. Elle peeled the crotch of her shorts to the side, gathering it against her thigh to expose herself to her brother. Her mound was tufted with a small amount of light brown, curly hair which was largely absent from her vulva.
"Wow." Adam's cock felt harder than it ever had before. He could tell that if he didn't slow down, he'd cum. He pumped with shallow strokes, just rubbing the head as Elle started to massage the tiny nub above the opening of her cunt. She pushed back the skin around the nub and looked up at Adam.
