The scene with Ava Vincent, Mickey D anmd Jon Doe in RS1 is maybe the hottest fuck scene EVER. But it isn;t so rough by current standards.
My vote is Julie Night with Holmes and Ferrarra in Mason's "Dirty trixx 2" or maybe something with Melissa that I haven't seen yet, with Mr. Pete or from anabolic/Tony T-type scenes.
Meatholes seems to be "emotionally" rough and its obvious there's some knocking around, but I kind of lose my vibe most of the time because it's too damn "dramatic." I guess I find Khan's antics more tiresome than a turn-on, and if the girls who are crying are doing it because they're so stupid they signed the form without realizing what was coming next, well, it's like watching the Special Olympics or something. You know they will overcome their handicap (dignity? the last shred of self-respect? their unpaid giant cel phone bill? what daddy did when they were 5?), but the bathos overwhelms the main event. I mean, if it's a rockin' chick like Kami, then bring it on -- but otherwise, there's better "rough" shit out there, isn;t there?