Top Floor at School

I'm from the UK and this story was back from my GCSE days. I must've been 16 at the time, at that age the hormones are always playing up. Anyway it was in R.E (Religious Education) class, when I asked a girl (Faz) in my class if she wanted to play truth or dare. Faz had the biggest tits, and she always used to wear a tight school shirt so they were just too hard to miss.

Anyway she agreed and after all the early stupid kinda stuff, I got serious and dared her to kiss me. She was kinda speechless but then she mumbled out 'ok but not in class'. After class she agreed to come to the top floor at my school (where its usually quiet and empty). It was there where she pressed up against me and started lipsin me, I could feel her tits on my chest. It was then that I got a bit of a hard on, I then blurted out ' I dare you to feel it' she ran her hand across my crotch and replied 'It's really hard'. I took her hand and we went to the boys toilet (where its usually empty)

I took her into one of the cubicles and locked the door. We started kissing again, she asked me 'well aren't you gonna show me'. I sat down, pulled my trousers down but kept my tight boxers on for a minute or two just to make sure I was fully erect. She then pulled my boxers down as if she was angry that I made her wait, my dick popped out, fully hard, the helmet shining, veins pulsating in the shaft, fully erect at that time must've been 8 inches. She grabbed it with a devilish smile and start wanking me off, all the time looking at me with her brown eyes. I slowly moved my vacant hands to her shirt and started unbuttoning her shirt, after 2 buttons her massive tits popped out. At this point she was tugging faster on my dick, I then told her 'I'm gonna'. I cummed all over myself and she was smiling, she instantly took some cum from her finger and tasted it. She said 'if we were at a different place, I would've swallowed every drop'