I was student. I met a girl that came in the town for 3 weeks course. We went to disco than in a green area on student campus that are used by young couple like us mostly for kissing in the evening. We did the same but she had a wicked wish to make me horny, by rubbing against my croach while kissing. She also start playing with my hard dick through my pants telling me that like that. Anyhow these tease process took several evenings until one evening when after kissing and rubbing we sit on some stairs one near the other. She did touch my penis and I was kissing her touching her breast. Than we start talking about girls, and I had some a nasty comment and she hitted my balls with her fist like a hammer (was sitting next to me). I was very surprissed and then I continued to be nasty and she hit me again. Because I did not show a real protest, but only arguing against like "Why are you doing this, you do not agree that some girls are naive / cheap...." she continued to hit my balls. After a while we stand up and start walking, then later stopped and we kiss eachother and then I just said soimething against girls again. The next moment was totaly unexpected. She pushed me back and did kick me full force with her shoe. I went to the ground in a lot of pain. She just teased me, seeing me there.
We had more ball slap and kick next days but that moment was unique. Unfortunately she went back home after that course finished and I did not see her again.
Honestly at that moment I did not realised how unique are those type of girls.