My son tries to give me kisses on my mouth "like daddy" but I do not feel comfortable with it so I have him give me "kisses,kisses,kisses" on the cheek.
I kiss my daughters cheeks, lips, fingers, and toes. I love my little girl and shower her with affection. I think the only thing i don't like are the kisses that involve her runny noise. Yuck!! I think she realizes this and kisses me anyways. Ha.
my son will just randomly come up to my hubby and i and give us kisses. its just a quick peck. we also kiss our boys on their fingers toes and cheeks. i dont think its wrong. they are just babies. when they get older however if you are still kissing your son or daughter on the lips then i personally believe its wrong.