Thong B with a bullet.
Thong A is girl-next-door who eats too many Chee-tos and has a few children from different fathers in her future. Thong B is a modestly successful stripper-slash-video-model, with various STDs and abusive partners in her future.
They both sound like shit, sure, but the thing is, with Thong B, if you play your cards right, you get to be one of those abusive partners.