Katie Holmes KissinCouples.jpgSo many couples, so little time! We here at X17 thought we'd take a look back at some of the cutest - and hottest - kisses between celebrity couples. Check out Nicky Hilton and David Katzenberg smoochin' (and grinding!), Ben Affleck and Jennifer Garner in a sweet lip lock or even Jessica Biel givin' her gal pal a kiss. (No, they weren't a couple, but why not include it!) Who's your favorite?

For us, it's a tie between two former couples - and boy do we miss them! Click below the cut to see...