If one is going to insert a story line, what better choice than a Mob-themed plot? Everybody loves the Mafia, everybody loves sex, how can you go wrong?
Apocalypse Babylon is one example of doing it right. The bad guys/good fucks theme is heavy on the good fucks, featuring a couple hours of great sex.
Perhaps most intriguing is the scene has AVN Hall of Famer Herschel Savage being lead around like a dog by Lexi Mathews and Alex Milano, complete with barking and, naturally, doggie-style fuckin'.
Lucky Savage also gets in on a hot scene with Vanessa that is among the title's best.
Pre-nom to Herschel for Best Actor - Video. DVD has sex-free version of Apocalypse, as well as lengthy behind the scenes.