I have not seen the movie, but according to the site I found it on this is a clip from American Pie Bandcamp.

WARNING: This clip is R-Rated due to nudity!!!

<a href="http://abum.com/download/11635/nude-scene-from-american-pie-bandcamp.wmv">Bandcamp link</a>

Mods: If this is against terms please remove and accept my apology.