Looks like one day of basking her bosom in the bright Mexican sunshine wasn't enough!!
But the paps weren't the only ones she was exposing them too!
Her 27-year-old beau Vito Schnabel was also present, and he was reallllyyy loving his lady. Not only did the two frolic in the waves and spend alone time together on a floating platform, they also made out in the ocean — Little Mermaid style!!
In fact, things got SO hot and heavy that it inspired Heidi's
fin foot to pop right out into the sweet, salty air. It's actually amazing that her black Tory Burch bikini bottoms stayed on…or did they???
Check out the NSFW topless photo and the couple's intense make out session…AFTER THE JUMP!!!