I kiss my husband on the lips, my kid sometimes (she really wants me to, keeps moving her slobbery little mouth in when I'm going for the cheek). I kiss her all over, all the time, though.
I kiss my ILs on the cheek, my nieces too, my nephew is 14 and would rather kill me than kiss me but I used to kiss him on the cheek, too.
My husband kisses his mom and dad on the lips. And me and the kid.
My parents are huggers, not kissers, now that we're adults. My mom has admitted that my very red, kind of raw cheeks as a baby and toddler were due to her kissing me so much, though.