"Please, please fuck me, master," you beg, half turning on the bed as the long silky hair drapes down one shoulder."Maybe," he says, taking his time unbuttoning his work shirt.You bite your lip and shift on the bed, your cute ass wiggling in the air. You're so horny. Master ordered you to stay on all fours on the bed and think about getting fucked while he went to work. You are sopping wet. Your pussy is glistening and the musky smell of your sex fills the room. You haven't been able to touch yourself and have been swimming on the edge of orgasm all day. You desperately need the release only your Master can give.You can still vaguely remember when it wasn't like this. You were a man. Roommates with Master, except his name wasn't Master then. Not until he found that magic ring and began changing you.Now you're his sex slave. Always willing. Always desperate for his cock. He teases you but when he finally enters you - oh! - sweet bliss. Your body craves his touch, his scent, his hot solidity inside you.You don't remember who you used to be, and you remember less each day.Now you watch him hungrily as he slowly gets dressed in casual clothes and then, with a sly grin, leaves the room.You moan in exasperation but don't move. You'll stay in this position, begging to get fucked, your juices pouring down your thighs like a waterfall until Master finally returns to pleasure you and you can fulfill your only purpose in life: being his slut.

Sebastian wakes up one morning in the body of Cindy, a cute young woman who lives in the dorm room below him. But his own (former?) body is still moving around, completely oblivious to Sebastian's confusion. What's more, Cindy is still conscious and thinks every sexy thing she's done is of her own free will in Suddenly Cindy 1, only available on Body Swap Stories and Smashwords. Preview here.
https://bodyswapfiction.com/enter/?p=12101