Owen and Woody Asstastic!

4/7/2008 4:30 PM PDT

Owen and Woody -- Asstastic!

Watch those tan lines! A nekkid Woody Harrelson skinny dipped over the weekend, showing all his assets. Best bud Owen Wilson came along too for the bizarre journey. They really are close!

Owen opted to keep his boys in his shorts, while the two hung out at this sweet Miami pad. Hopefully Woody didn't run into any sting rays during his swim.