Heidi Klum: Project Bunway

5/9/2008 3:45 PM PDT
Things got a little sticky for Heidi Klum in Mexico on Thursday.

The 34-year-old sexy supermodel mom heated things up by lounging in the sun and picking her bikini bottom from betwixt her butt cheeks. Auf Wiedersehen wedgie!

Heidi, her parents and her three kids enjoyed a peaceful warm day -- because her douchey baby Seal was nowhere in sight!