There's only 3 slots to choose from. Shove it in her mouth, put it in her cunt, stick it in her ass, then flop it back in her mouth, repeat. No atmosphere, character development, excitement, or suspense. The fellas in A Serbian Film were on the right track but those psychos pushed the envelope a bit too far.
I prefer close up pussy grinding for my fapping entertainments, but there's nothing like having your balls drained and swallowed followed by a greedy tongue polishing of the ol' knob.