Not an expert on testes but regarding boobs I've a bit of experience studying the natural form, and one thing that I've noticed is that of the women that I have studied, sexworkers boobs tend to be far more symmetrical than non sex workers. In fact I'm only aware of one sexworker with noticable different natural boobs.
Maybe its just the type of ladies that sleep with me for free, but I do tend to be attracted to ladies that cover up, rather than those that confidently expose cleavage.