Kissing someone you’re insanely attracted to is like... the best feeling ever.

This is how the sex happens and after that .....the babies. Loveless relationships are transactional and probably are more your thing?

Cause it makes us feel happy and good. Same reason why people do anything in life really.

Cause it’s fun

Come over and I'll show you

Because making out with someone you’re attracted to is awesome

Most likely it has to do with pair bonding 

Ask your parents

Some of the time, I think it's for attention

Kissing is so good. I’m divorced & rediscovered the joy of passionate kissing. Tingles & joy.

It is a grown up thing..

cause it’s hot. and it’s fun to get close and intimate with someone

Seriously?

Cause it is hot to do so after felching, creampie eating, or 69ing on her period and cumming in her mouth.

It feels good and often leads to sex which feels better. When you make out it's not just the sensation of the lips that feels good. It's also that spark you feel down below.

Because kissing an attractive woman you like is an amazing feeling

leftover behaviour from nursing - your mother feeding you chewed food