Kim and Kourt flaunt their bikini bods as they celebrate Kourtney's 32nd in Punta Mita, Mexico with their guys: Kris, Scott, brother Rob and little Mason!
Wet and Wild!
"They were splashing each other," a witness says of Kim (wearing a Beach Bunny bikini) and beau Humphries. "Kim tried running away, but he caught her!"
Credit: Winslow/Prahl/Splash News Online