Sam smiled up at his sister as she moved herself on top of him, feeling her hands on his chest, tracing his pecs, everything seeming to come together nicely. He could feel how wet she was already for him, almost as if she had been fantasizing about this for a while. Sam smirked to his sister as she slowly lowered herself down onto his hard cock, sliding him in as if the two were a perfect fit...considering they were twins, it was certainly very likely. Sam let out a soft moan as she took him inside her, burying him deep, and watched her as she adjusted herself and readied for her pleasure, and smiled as she began to rock her hips in slow circles. While she rode him, back and forth, up and down, his hands closed on her breasts, knowing she certainly wouldn't need help in keeping control. His fingers massaged her nipples as Sam smiled, closing his hand on her own as it played with her hard nipple. "Oh god, Nessa.....harder...." Sam said, trying to coax his sister, in subtle terms, to ride him as hard as she could. Sam had no idea that Cana would be coming down the hall in just a few moments at their father's request, and the two were perfectly positioned for their younger sister to see Sam's cock sliding into Nessa with each rise and fall of her rump.