I have known a few people like that. This hot girl I used to know was hot as feck except she never washed her hair. Claiming that it self cleaned but it was this horrible lank mop on her head that whiffed a bit if you got too close. She never had dreads or anything, just brushed it occasionally. Blegh.
Yeah, that's the same scenario. The vagina magic holds em in their thrall and that is all they can think about!