I think Bella is the ugly woman's porn star. She doesn't even try to be attractive and that is what gives her such broad appeal to dykes and girlie men. Women can watch her porn with their boyfriends and not be threatened that the ugly woman on screen is going to somehow come through the screen and steal her boyfriend away from her.
The guys who like Belladonna are secretly drawn to her because they are saying, "hey I could get her!" and really believe it. They look at Aiden and say, "Hey, I am hotter than that guy!" and it's more than likely true. If she had a back east accent like Tyler and a voice like Fran Drescher, she would be the whole package.
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I love cock and balls.