This has probably been done before but I know I haven't seen it. It's probably a kind of extension to the Baker's Dozen series but involves anal.
Let's say there's two girls in the scene with quite a large number of guys. This scene would vary but here's the basic jist of it.
One of the girls is say bent over a couch & the other is knelt down next to her. To keep this brief, I'll just say that the girl bent over the couch takes it up the ass from every guy & then each guy immediately after the anal proceeds over to the girl kneeling on the floor & she wanks him off all over face. I suppose while the ass girl is being done the other girl can be working a guy before he's set for his anal part.
I think you'd have a great gape & glazed face from this scene!
Just thinking, if you had 22 guys in the scene you could call it 'Catch 22' because the girl would receive that many loads on her face. Yeah, I know, it's corny. I suppose it'd be hard to afford that many guys anyway.
Just a thought.