By Leah Ornstein
Radar Features Editor
Who knew Rachel Bilson had such a bangin’ backside?
The Hart of Dixie star gave Kim Kardashian some curvy competition, stripping down into a skimpy black bikini and flaunting her bombshell booty, while vacationing with her on-again-off-again boyfriend Hayden Christensen in the Caribbean – and RadarOnline.com has the scorching hot photos.
The 30-year-old actress looked absolutely sensational in her barely-there string bikini, as she frolicked around the beach with her longtime love.
Though Rachel has never been shy about showing off her bikini body, she has never looked quite this bootylicious on the beach.