By Leah Ornstein - Radar Style & Beauty Editor
That's one hot momma!
PHOTOS: Heidi Klum Shows Off Her Bikini Body On A Boat
The German supermodel showed off her fat-free figure in a barely-there black and white bikini, which she paired with attention-grabbing yellow sunglasses.
Lounging on a white leather coach aboard the luxe yacht, Heidi was surrounded by her husband Seal and their four children, as well as a few of their pals.
The Project Runway babe looked more in love with her chart-topping husband than ever, as she planted a huge smooch on his lips.