Stock it, but in general as opposed to your butt section.
Okay, so here's the question: Does a video entitled Anal University need to have butt sex in every scene? 'Cuz if you think so, you're gonna be sadly disappointed by Volume 12. There are only three scenes to start with, and only one - that of the very blonde and very German Ana Nova - truly lives up to the promise of plundered sphincter. Sure, Olivia O'Lovely does stuff a dildo up Jaena's hungry derriere, but lesbian anal, however hot, doesn't really count.
Thing is, despite the false pretenses, the video is smoking, with the real scorcher having no ass-play at all.
The segment in question has the spunky Ashley Blue getting fucked halfway to oblivion by Nick Manning. For those unaware of Blue's charms, she's a small-chested wonder who's about as dirty as they come. She and Manning have chemistry kinda like vinegar and baking soda - one helluva volcanic overflow. At one point Manning pounds away as Blue chokes herself and hurtles towards another infinite orgasm. (Needless to say, this is a video more for solo stroking, fellas.) It's worthy of a pre-nom for the duo as Best Sex Scene Coupling-Video.
The camera drifts to long shots a little too often, but still an ace production.
Also, get the DVD if you can. The best anal scene is in the bonus footage, where some nameless brunette goes crazy for the cock. It's one of two bonus scenes, both outstanding. Get on it.