Kim Kardashian goes topless, straddles Kanye West in rapper's 'Bound 2' music ...

Ellen Degeneres Show

Kim Kardashian and Kanye West are on one wild ride.

The 33-year-old reality star can be seen straddling her fiancé topless while he steers a motorcycle through the desert for his 'Bound 2' music video.

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The 36-year-old rapper debuted the provocative clip featuring the mother of his child on a episode of 'The Ellen DeGeneres Show' set to air Tuesday.

The video starts out showing off the sexy silhouette of Kardashian's post-baby body as she is sprawled across the bike.

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When West belts out the lyric 'one good girl is worth a thousand b--ches,' the two parents of 4-month-old North West can be seen in a steamy embrace as they begin to kiss.

A source first teased Kardashian's vixen role in the video directed by Nick Knight to Us Weekly on Monday calling it, 'really sexy.'

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'Kim looks beyond gorgeous. It's very artsy, very beautiful,' the insider continued.

'The imagery is very colorful and light. Nothing about it feels pop or urban. She looks incredible.'

Knight also worked with West as the director of his 'Black Skinhead' music video in the summer, which showed off his shirtless body.

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