James Franco & Seth Rogen -- Mock Kanye West and Kim Kardashian's 'Bound 2' Music Video ... Topless Bike Riding

I know, you're tired ... of seeing Kim Kardashian in Kanye West's new video for "Bound 2" ... so James Franco and Seth Rogen made their own version ... and it's AMAZING!

Franco and Rogen dropped "Bound 3" online today saying they felt inspired to recreate their new favorite music video while filming a new flick called "The Interview."

The best part ... Seth plays the role of topless Kim ... with a full James Franco dry-hump sesh.

Don't worry ... the video is safe-ish for work.