Erin Strecker
April 30, 2013 AT 08:36 PM EDT

Fans of belly button-free teen science fiction, we’ve got the reunion for you.

Kyle XY star Matt Dallas will guest star on the second season premiere of the ABC Family sitcom Baby Daddy, which stars former XY-er Jean-Luc Bilodeau. Baby Daddy — surprise! —  follows Bilodeau as he unexpectedly becomes a father to a baby girl when she’s left on his doorstep by an ex-girlfriend. The show, which also stars Derek Theler, Chelsea Kane, and Tahj Mowry, wrapped its 10-episode first season in August, and has already been renewed for a third. In the premiere episode this season, Dallas will play a guy who hits it off with Riley (Kane).

Check out an exclusive behind-the-scenes photo of the onetime-brothers goofing around on set of Baby Daddy (Hellooo, abs!) below and then click to the second page for another exclusive photo. Baby Daddy will premiere its second season Wed. May 29 at 8:30 p.m. ET on ABC Family.:


Left to right: Tahj Mowry, Jean-Luc Bilodeau, Matt Dallas, Derek Theler

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