She pulls out her cock.

Seeing his reaction she decides to give him what he deserves and walks around behind him and pulls out her 10" cock. She pushes him down ontop of you and pulls up his ass and doesn't even use a speck of lube as she presses herself into his ass. He screams and moans as you suck him and she pounds the shit out of his ass relentlessly. Then you decide to get in on the action and you pull yourself from under him and walk around. She sees you and says. "Sure hun, give it a go, I need to break in the other end." With that she pulls out and you replace it with your cock. She then walks around and stuffs herself down his throat. The two of you then take turns and fuck him till during one switch she notices and points out he is leaking cum. "Why you little whore. You know what we should do don't you?"

"Yes I think I do." You answer with a grin, and strip naked. She picks up your costume and forces it onto him. Just as you thought this turns him into a sexy young shemale. Then she seems to know a little more than she let on before and she pulls a ball-gag out of her pocket and forces it into his mouth. No sooner than it is in does his cock shrivel up and invert into a sexy little pussy. She smiles at you and the two of you procede to dp the hell out of him for several hours till he is sore and covered in cum, as you take turns fucking him as the other rests. Finally finished when he/she passes out you take a moment and look at yourself.