Photoshop expert needed

Basically, my friends and I are playing a prank on another friend. We have some pics of his gf making "kiss faces" and we need someone to photoshop in another guy kissing her. You must take out the backgrounds of both photos, add in any different background that you want, and merge the two people "kissing" together so that it looks like they are really kissing. You will select any picture of a guy that you want...as long as it looks real. Please send me examples of "before and after" work that you have already done for consideration.