It’s a little unclear, but, Hayden Panettiere’s nipple is undoubtedly slipping out of her swimsuit in one of these pics. While swimming with her puppy in the pool, celebrating her birthday, Hayden’s bikini got pushed just a little to the side, but enough for a lucky paparazzo to get a nipple slip shot.

Aren’t you glad for powerful cameras and celeb nipple slips!

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