Rachel Bilson: Barbados with Hayden Christensen!

Rachel Bilson enjoys some motion in the ocean with shirtless on-again boyfriend Hayden Christensen in Barbados on Wednesday (April 11).

PHOTOS: Check out the latest pics of Rachel Bilson

The 30-year-old Hart of Dixie actress flaunted her bikini body while vacationing with her Hayden‘s sister Kaylen and niece.

Earlier in the week, Rachel joined millions in the TOMS 5th annual One Day Without Shoes, which raised awareness for the children who go without shoes every day.

10+ pictures inside of Rachel Bilson and Hayden Christensen vacationing in Barbados…