I read this story a few years ago and I want to find it again; haven't been able to find it in the search. I think it was in the nonconsent/reluctance category. It's about two teens who wake up in a room that consistently gets filled with blue air that makes them horny until they have sex. At the end, it's revealed that they're part of some experiment and that's just the beginning, I'm pretty sure the author intended to continue it and make a series, but I don't know if they ever did. Thanks.