When I was 16 or 17 a man i was dating very nicely and kindly showed me the most sensitive parts of a penis and how to suck cock.
He was clean, had a nice penis and never forced me to suck him. That just made me want to practice what I just learned.
This was my very first experience.
It was super exciting, pleasant and I wanted to do a good "job".
I do not remember if I swallowed that first time, but probably not.
With my first sweet experience I cannot imagine NOT performing oral sex, nor not swallowing. For me it is an integra part of almost every sexual experience/encounter.
I do not like pubic hair, and my husband must be super, super clean smelling (right out of the shower, No aftershave/cologne either)
I also like the power I have (or have had in the past with boyfriends ) with your cock in my mouth and my hands, I own you.
That being said I find it odd that a lot of woman don't suck cock. I don't ask why. Oral sex, both giving and receiving, is a huge part of having sex for me.
Oh and I swallow.