Things are heating up this week in Europe... After Cindy Crawford showed her tits in Italy yesterday, Heidi Klum decided she couldn't be any less than her American counterpart, and she decided to bare her breasts as well.

In this case, Heidi showed that for European supermodels being topless comes quite naturally, so she grabbed her family, took them to Ponza (also in Italy), got herself on a luxury yacht, and put her titties on display for the world to see.

It must be "show your tits on a yacht week". Wondering who'll be next? Stay tuned, because we're on the prowl for topless supermodels!