Trainwrecking tattle-tales claim Britney Spears has a compelling reason for constantly flashing her bald coochie in public-the pop tart is allergic to underwear. A mole says Brit is prone suffering spots and soreness from cotton coverings. (Yes, we’re serious.)

“Britney has sensitive skin all over. We tried lots of different materials, but sometimes she would get a bit of a reaction, which naturally is very uncomfortable,” says a Fox News spy. “Especially when she would be on stage under the hot lights performing, all that sweating makes things worse.”

“She should at least wear longer dresses or pants or something,” says the Fox-y informant.