Just a few thoughts. I'm surprised no one has done any of these:
"Housewife to Whore" - A "finishing school" where wives, girlfriends and curious women can take practical classes about how to please their men (and/or women) from field-tested professionals who know what the hell they are doing.
"Posers" - A club that provides an opportunity for groups of amateur "artists" to photograph, paint, draw, video (you name it) beautiful women in erotic poses, kinky acts, and sexual encounters.
"Party Favors" - A service that provides sophisticated, charming, attractive women for area bars, clubs, restaurants, festivals, galleries, parties, and any business that wants to draw crowds of people with cash.
Nothing illegal, I think. Just good clean capitalism.