Bondage Ball (which hosts adult-themed parties across LA) and Bar Sinister (a regular club night at The B52 Club) team up for the fourth year in a row to bring you their Ghostly Equestrian Ball ("Beauty Behaving Beastly!"). It's a decidedly x-rated Halloween party, with five fetish play zones (when we hear "play zone" we think of little kids in ball pits—could they not have come up with a sexier name for such areas?), four full bars, pony go-go dancers, fetish models and sexy slaves. The whole "equestrian" theme might be a stretch, but we'll give it to them. Feel free to let out your inner freak here—there are no cameras allowed, and according to the flyers, "what happens at Sinister stays at Sinister." So get your costume on (or off) and go nuts.