Do you think it's inappropriate to kiss your child on the lips?

My son is nine months old and is learning how to give kisses. I think it's really sweet, but a couple of people have told me they think it's creepy and inappropriate for me to let him kiss me on the lips. It's just a quick peck and I would never do it if I'm sick. But the insinuation that it's unnatural makes me kind of uncomfortable and feel weird about it.I'm interested in hearing your guys' thoughts on this. via /r/Parenting http://ift.tt/2oHA3Ye