Kissing is not important to me, and I went many years without initiating kissing, and usually the boy did neither.
But since the subject came up on the forums a few years ago, I do market research. The majority of my boys are not into kissing. I can plant a short closed lips kiss on them (to see how they react, usually there is no reaction, so I leave it at that), some turn their cheek.
Some are into kissing, however there can be bad smell (food or oral hygiene or smoker) or what I call wet kiss. One of my boys loves kissing, however he has a lot of saliva, and I feel my mouth filling with saliva, which I don't like (have to wipe it off before it starts running down).
I remember only one case of kissing that felt good, tasted good, smelled good and that I would like to repeat.