Christmas Break [MF, INC]

Hello all! This is my first attempt at taboo erotica. Or any erotica. Hope you like it!

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. He had learned a few months before that a rhythmic up and down pumping of his erect cock in the mornings would result in a tingling warmth, radiating from his cock like a flash, all through his body. 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 one last time for his sister’s closed eyes before sending himself over the edge.