Well simply because she is the only female characters in the game without exaggerated proportions. There's an appeal to see the character that's the odd one out. And there's an appeal to getting to see such an exaggerated dick go into a women who herself doesn't have any exaggerated proportions at all.What is people's obsession with babs lol, honestly might be the worst appealing character in the game. I guess people like their preferences.
Plus blowing the nerdy girls mind.