First HJ from a girl

I was quite shy in my late teens, I learnt how to masturbate, but didn’t have any experience (apart from a few fumbled gropes) with a girl.
About the age of 19-20, I had a blind date that a mates GF arranged for me, and ended up going out with Kathy for quite some time. She let me feel her properly (she had lovely tits), and gradually progressed to partial undressing. She made it quite clear that below the belt was off, but I loved fondling and sucking her tits. I used to get really hard, and always had to have a wank when I got home!
One weekend we went to a concert on Saturday night and had a really good time listening to a 70’s folk/rock band. I took her home and she told me her parents (and sister) were away, so we could have a nice cuddle without getting interrupted.
After coffee I soon had her blouse off, she removed my shirt, and I started on her bra (black lace). Soon I was nuzzling her lovely tits, sucking her nipples, and I was very aroused! (she was too, I could tell from her nipples!). I was wearing a pair of hipster trousers, and black briefs under. As we kissed and fondled, I realised she was looking at my trousers, and I realised that I was so erect that my cock head was above the waist band of my briefs, and visible!
She reached down, undid my belt, unzipped me, then pushed my briefs down. She started to slowly stroke my hard cock, very gently, but then started to increase speed. I was getting very close to cumming so I said, “Kathy, no!” to which she replied, you know you want to....
She was on her back, I was on my side next to her, she carried on rubbing me, I tried to hold back but it was no good....
I started to spurt, and spurt, and spurt! I’m not sure how many jets I shot, but I almost collapsed with pleasure!After I had recovered a little, I started to caress those lovely mounds of flesh, but realised they were sticky! I looked down and saw that her belly, tits and neck had all been hit by a lot of cum! She produced tissues and helped me clean up.
We went out for a few more months (before I started with her best friend!) and she repeated the operation with me. She allowed me to rub her cunt through her tights and panties, and frequently had an orgasm.
Happy days!!