In an incident reminiscent of her disastrous 2007 photoshoot with OK! Magazine — during which her dog soiled thousands of dollars in designer duds — Britney Spears was left similarly shamefaced after some of her uh….bodily fluids….ended up on a few chic designs during a recent photoshoot with Elle Magazine.

“They dressed her in all these beautiful couture clothes — and, well, let’s just say she forgot what time of the month it was. It wasn’t pretty,” a nauseated spy told The NY Post’s Page Six Column on Thursday.