Expectant parents Jenna Dewan and Channing Tatum had fun by the water while vacationing in St. Barts over the weekend. The barefoot and pregnant actress looked adorable in a multi-colored strapless bikini, a bright orange wrap and straw hat.

Tatum, who showed off his sexy body in the film "Magic Mike," wore black and white swim trunks and spent some time snorkeling.

The couple announced the happy news before Christmas. Tatum, who was recently named People magazine's "Sexiest Man Alive," hinted last month he was eager to start a family, saying in one interview: "I'm ready; I think she's ready. The first number that pops into my head is three (children), but I just want one to be healthy and then we'll see where we go after that."

Tatum stars in the upcoming films "G.I. Joe: Retaliation" and "Side Effects." He is also working on a sequel to "21 Jump Street." Dewan-Tatum recently appeared in "American Horror Story: Asylum" and the 2011 cancelled TV series "The Playboy Club."

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