Question: Is that a Hayden Panettiere nipple slip? It's a little hard to see, because it's underwater, but I'm pretty sure that while playing with her dog in the pool, Hayden's bikini slipped a little to the side, and out popped some Hayden Panettiere boobage.
Hayden was celebrating her birthday this past weekend in a mirrored bikini, but it looks like we're the ones who got the real birthday present. Cuz, you know, we got to see her nipple.
Photo credit: bauergriffinonline.com