My first girlfriend-hmm-better not use her real name-let's call her Emily for this. She was an only child and her parents watched her like a hawk. Then again I was an only child too, and my father was a total asshole.
So, now and then, they would take me and Emily out in the car. This particular day, we had been into the Kent countryside and were driving back to Shoreham in the dark. When her mum and dad got out of the car at a service station, I managed to cop a feel of Emily's boobs under the level of the door window, of course.
I guess that made us both more than a little horny. It was totally dark when her mum and dad got back in the car, and as it was an ancient Morris Minor, the heating didn't work too well either. So I had my coat over my legs. Emily, however was holding my hand under the coat. (Her mum and dad would NOT have approved.)
Well, I was 15 for fucks sake! I soon managed to make sure the back of her hand was against my rapidly hardening dick, and she, bless her, noticed and started rubbing my cock through my trousers. Feeling, shit, I don't know, daring? Suicidal? I unzipped under my coat and wrapped Emily's fingers around the real thing. Soon she was wanking me WAY past the point of no return. I only just managed to grab a tissue in time before I came in it. Emily's eyes were so wide as she felt my sperm shoot.
Then, she took my left hand and spread her knees as wide as she could. She pressed my hand hard against her crotch which was nicely moist! Shame about the tights being in the way though. All I could do was rub her through them and it wasn't enough for her. She reached down and tore them and tugged her knickers aside. Soon, I had two fingers buried deep in Emily's cunt.
The motion of the car did the rest and for the first time in my life, I felt a girl cum on my finger.
She was ever so wet, I remember wondering if she had lost it and peed on me, but it didn't smell like pee.
When we got back home, I was hard as all hell again and had to hide it as I got out of the car. Emily made some lame excuse about walking home with me. (I lived in the same road as her)
We got to a building site about half way down and had ourselves some more fun.
Let's just say neither of us were virgins by the time we both got home.