Erotic Story: Basement Writing Challenge

It's been a while since I had the desire to write anything, but I friend tried to break my writers block by suggesting a location and rough elements of a story. I have to admit that basement imprisonment scenes aren't exactly my thing, but I really can't ignore a challenge either. Writing is much like acting: sometimes it requires putting on the guise of a person who is entirely unlike oneself. So let's see if this attempt gets the thumbs up from the peanut gallery...