Kellan Lutz: Groomsman at Brother's Wedding!

Kellan Lutz suits up to serve as a groomsman at his brother’s wedding on Saturday (April 30) in Valencia, Calif.

The 25-year-old Immortals actor came out to watch his brother, Brandon, marry his sweetheart, Sarah Oriolo, in front of approximately 100 guests. Also spotted at the ceremony was Kellan‘s on-again/off-again girlfriend, AnnaLynne McCord.

Earlier in the day, Kellan was spotted showing off his six-pack as he went skateboarding shirtless in Venice Beach.

Kellan will hit the big screen next in Love, Wedding, Marriage, due out early next month.