His sister just moans and moans as he pumps into her welcoming body and he sighs as she shifts, rolling over onto her knees, twisting around his cock while he pumps.
"Damn that feels good!" Jim moans, but realises something is amiss.
Things seem to be constricting all of a sudden down there, and his shaft seems to slowing in it's growth. Then his shaft tingles all over.
"Wha...?" His sister gasps, before he watches her legs melt into him shrinking and fading away to nothing.
In seconds she is just a body, her hips joined to his, and as she turns and twists, trying to see what is going on, he realises he can FEEL her every move. She has become his penis, giant, girl shaped, but still his cock.
"J..Jim? What is going on?"
"Um, I'm not too sure. At least not sure why this is happening." Jim says, delaying the explaination of this as much as possible. How will she take this?
Sat Oct 14 07:44:43 2006