If you think about it kissing is just oral sex to the mouth the same way you can do oral sex to the vagina, penis, or anus?

Yeah that makes sense.

When my husband kisses my vagina it feels great but when my son kisses me good night it is feeling of love .

I do like kissing him both ways ( husband)

Given the order of your comparison, sounds like you’ve given more blowjobs than you’ve had kisses

Pretty much. The mouth has more bacteria in it than the vagina, however.

kissing isnt as much licking

That is one stupid question.

Oral sex is a sex act. Kissing is not a sex act in itself, but it can certainly lead to that.

This is the same sort of logic as to why most legal systems consider an adult making out with a teen sexual assault.

Less risk of bacterial infection.

Really? You kissing your granny must be an absolute thrill for her.