Ava Devine comes to mind. She's not the best looker, but you know that _everything_ is on the menu, and absolutely no need to worry about going too far or too hard: you're guaranteed to have a good time, and that's the point.
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"If they can't picture me with a knife, forcing them to strip in an alley, I don't want any part of it. It's humiliating." - windsock