I ran across Talyn on the forums earlier, and after some discussion and IM games, I've decided to run something based on the Bondage Adventure game he's come up with. Link to the wiki for it: http://adventure.arena.t15.org/Main_Page
The gist of the system is that, while the players fight enemies like a normal d20 system, the enemies all use attacks themed around bondage; the more hits that land on a player, the less they're able to fight back unless they can struggle out of them.
For this game, I'm going to run something based on the Clothing Store mission, although I will say I plan on making my own tweaks to the mission itself. Regardless, the mission goes something like this: The clothing store appears to be abandoned, but while the nearby buildings have fallen into complete ruin, the store itself looks clean enough that it could have been in use yesterday. Inside, the adventurers will find that the costumes the store used to make have taken on a life of their own, and will attempt to ensnare anyone who comes nearby, forcing them into the enchanted outfits.
The game is going to be relatively plot-light, and likely pretty brief, although I may come up with more adventures later that are a bit longer and more open-ended.
If you're interested, toss a post here and I'll get things going when we've got enough people. I'm hoping to get 3-4 people, possibly 5 if there's enough interest. However, I will insist on only female characters (players can be any gender).