Who is the most failed pornstar in history?
Until you added this condition "I'm talking about someone who has been in the industry for a while but rarely is requested". I immediately thought of that Ultimate Fighter tool "Warmachine". That guy was a heeee-yuuge fail. Too dumb to make it as male talent. Incredible.
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So, uh, what are trying to tell me here, little man, that you don't like Zep?