The model mama shared a snapshot of her son's Teenage Ninja Mutant Turtle cake on Instagram.

By peoplestaff225
Updated December 11, 2013 07:00 AM

Cowabunga, dude! To celebrate son Benjamin Rein‘s fourth birthday on Sunday, Gisele Bündchen and Tom Brady enlisted the help of four famous turtles for his totally gnarly party.

With a bouquet of green balloons and party confetti to match, the dessert table featured a Teenage Ninja Mutant Turtle-themedcake. And standing next to the cool confection? A mini Michelangelo doll (plus his nunchucks!) to keep away any sweets-loving bad guys.

Courtesy Gisele Bündchen; Inset: Splash News Online

“Our little angel is getting so big. Happy birthday my sweet Benny. We love you so much! #blessed #unconditionallove #grateful,” the model mama wrote on Instagram.

December is a busy birthday month for the family — little sister Vivian turned one on Thursday. Bündchen is also back to work getting glam for an upcoming campaign. It’s a good thing she’s good at multitasking.