The 35-year-old Shameless actor went shirtless earlier in the day while bringing William, 3, to the beach.
Steve guest starred on Max‘s show New Girl earlier this year as a love interest for Zooey Deschanel‘s character Jess.
FYI: Sarah is wearing Mara Hoffman‘s Psychic Readings Print bikini.
25+ pictures inside of Sarah Shahi and Steve Howey‘s family vacation in Hawaii… More Here! »