"Strip Chess" by Delta. This is one of my favorite ever stories. Some people resist downloading stories that are nine parts long, but this one is worth it. A group of college kids get together for an evening of fun, and someone suggests playing strip poker. Knowing she has no chance at the card game, one of the girls suggests strip chess instead, with the winner getting the body of the loser. (The observers make side bets and do things to distract the players). The only bad part about this story is that I had serious problems with my concentration the next time I tried to play chess. Really! You don't have to know chess to love this story, but the chess will make sense to good chess players. And the sex fantasies make sense to good sex players.