College Girl agrees to Kick me in the Balls

I'm working in my garage when i see a cute girl walking down the alley, so i pop open the door and call her over. i ask her what her name is and where's she's coming from. after talking about university i tell her that i'm working on a psychology project, which will focus on the ballbusting fetish. i promptly ask her if she would be interested in kicking me in the balls and she says it might be fun so she's in. she starts by kicking me in the balls then asks to feel my dick. she's curious and thinks that i like it but i make up a lie about always having a boner. she continues to kick me in the balls and even asks me to close my eyes so i can't see it coming. she's having lots of fun and laughing because of how i squirm to close my knees after every kick. she admits that she's kicked guys in the balls before and demonstrates how she would kick or knee them in the nuts. she kicks me in the balls from behind and one of them really hurts and almost makes me call it quits. she grabs my dick again and asks if i like it again but i say i need to study it further to make up a conclusion. i have her get down on her knees and squeeze my balls, which she does really hard, making me gasp for air as she nearly crushes my testicles. she says she's late for a class and asks to do some hard kicks to finish me off. i let her kick me in the balls super hard and then she leaves to go back to uni.