War ich gut? (2007)

Adam loves Nina. He thinks they have the perfect relationship - until he accidentally finds out that his girlfriend has faked an orgasm or two. His world is collapsing and he seeks advice from his best friends Ulf, Stefan and Karl. Karl can't understand all the excitement because it's certain that no bunny has hopped in front of him yet. Nevertheless, he supports his friends on the hunt for the real orgasm...