I don't remember what scene it was, but I do recall a Cherry Poppens scene where she was blowing a dude, and everytime the head of his cocke hit the puke button, she'd arch her back like she was about to puke, but didn't. I didn't get the idea she was faking, more like she was a seasoned bulimic and could keep shit down.
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Thinking of cracked-out and/or tweaking whores getting their throats and asses brutalized for the next hit makes me hard. --Rear Admiral