None! From what I've read, the ratio of girls to men is low. Like three men for every one girl. Some reviews on here have said
"spent more time watching others than shagging one". One such party venue in Dagenham has damming reviews because of this.
Some years back I was into spanking, and went to parties run by Redstripe, Peaches, and Moonglow. Same with them. Ages watching and little time action. Nothing changes!