I am kinda wondering why asking that is embarrasing actually. It seems like a "normal" question in this forum anyways xcept for the small fact that the question hasnt been asked before.

+ I agree with wyl with the "can you become a machocist" question.
Sure you can raise the pain tolerance some by practice but pain delivered by somebody else is a completely different thing than doing it for yourself. That is MY take on it anyways.