AceShowbiz -

Hayden Panettiere is enjoying a babymoon with her fiance Wladimir Klitschko. The expectant actress is pictured debuting her baby bump while making a splash in St. Tropez and hanging out aboard a yacht with her baby daddy. She wears a black one-piece swimsuit.

The "Nashville" star and her 38-year-old beau dated after they first met in 2009 at a book party. The petite actress, 24, and the 6-foot-6 boxer champion broke up in 2011 before giving their romance another chance early last year. She announced their engagement in October.

"It's like the 2.0 version," she said of their reconciliation. "I've always had great relationships and stayed really good friends with the guys I've dated. It blows my mind sometimes that us getting together has gotten so much attention. It's like, Really? This is breaking news?"

In a visit to Ellen DeGeneres' show, Panettiere once cracked a joke about the height difference between her and her beau, "He's got bowlegs and I've got knocked knees," before joking about their future kids, "so they're going to have straight legs. And they'll be normal height."