What wicked plans does he have for his older sister?

John bumps into someone unexpected

John stepped forward, taking things one step at a time, trying to ignore the deep burning temptation coming from within his former sister. He stared (not like he had a choice) at the giant, person sized meat rod in front of him, it completely taking up his field of vision. He wanted nothing more than to stop moving, to give in there and then and worship it, pleasure it, rub it until it exploded and showered all over him. He resisted, for two reasons. 1, he had other things he wanted to do with these newfound powers, and 2, he was worried that once he starts, he may never stop.

It was still really damn hot though. The sheer size of the thing set his mind running, and the thought that just moments ago it had been a person, a living, breathing human being, now trapped as an inanimate part of his body drove him nuts. He'd often read erotic fiction of scenarios just like this online, but never imagined it could happen to him. But now it had, and it was wonderful. He found himself wondering if Melanie was still aware within him. The odd twitch made him think it was likely, especially since it was built around his desires.

He was so lost in thought he didn't even notice the woman in front of him until the tip of his cock started to press against her lips. Surprised, John paused, taking in the features of the woman on the other end of his cock. A devious smirk passed his face as he realised who it was.