My [M] first handjob from my G[F]

I was trying a long-distance relationship with a girl from my hometown, who came from a rather conservative family, meaning most I could hope for was a kiss. I was 21 by that time (she was 19) and never had any sexual experience before that, besides the casual boob or ass grab while making out.
I went back home to visit my parents for a while, and she and I went out on a date for the first time since being together. She wore a crop-top that showed just a little bit of cleavage, but enough to make me horny, black tight jeans, and high heels that showed her magnificent pedi.
We drove around for a while, then I decided to take her to the beach, somewhere really quiet, where we could have some intimacy, because where i come from, making out is forbidden and can get you intro serious trouble :’)