Sienna Miller Nip Slip!!

Sienna Miller was jumping up in the ocean when her bikini top went down and gave a very revealing nip slip.California must be warmer than the midwest because Sienna was laying out at the beach when she decided to cool off in the water. A combination of crashing waves, running, and a skimpy bikini led to a brief moment that did not escape the paparazzi eagerly waiting for a money shot. She pulled her top up as soon as the nip slip occurred, but it was already too late.

Sienna is, of course, no stranger to baring flesh, and last year filmed nude scenes for her upcoming Hippie Hippie Shake set in the Swinging Sixties.Later she met up with her boyfriend Rhys Ifans for a sushi feast at Nobu in Malibu, where, thankfully, they were both fully clothed. The pair, who have enjoyed a string of luxury holidays since they began dating last year including a trip to Mexico, recently reunited in LA.More photos Here.