Credit: PacificCoastNews © 2014 PacificCoastNews. All Rights Reserved. Photo: Vito Schnabel and Heidi Klum in Tulum, Mexico, on April 15, 2014

As you know in fashion, one day you're in, and the next you're out… gallivanting topless in Mexico with your younger boy toy!

Project Runway host Heidi Klum's latest fashion statement involved very few threads at all, as she went bare-chested on April 15 as she and boyfriend Vito Schnabel, 27, enjoyed the warm ocean waters off Tulum, Mexico.

In the pics, Heidi and Vito hold hands as they wade into the water — then they make out in the middle of the ocean, unfazed by their colliding trucker hats.

The 40-year-old model and her younger man were first spotted getting close back in February. She has been married twice before: once to stylist Ric Pipino (from 1997 to 2002) and then to singer Seal (from 2005 to 2013). After breaking it off with Seal, she dated her bodyguard Martin Kristen until early this year.

Meanwhile, her new art dealer boyfriend — the son of artist/filmmaker Julian Schnabel — has been linked to a number of older women like Elle MacPherson, Liv Tyler, and Demi Moore.

Hey, Vito is a lucky dude. And so is Heidi. If we had her physique, we'd probably be showing it off, too!

Credit: NDN Photo: Heidi Klum's Topless Vacation With Younger Boyfriend (VIDEO)
Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!