Masturbating in Class

So, back in 10th grade I had this PE teacher who had the best legs I’d ever seen. When she’d wear shorts, I couldn’t help but stare at her sexy muscular legs. They were thick, muscular and smooth. When she’d bend over, a bit of her top would go up and I’d see a bit of her back. Seeing this drove me insane, and my dick was hard as a rock whenever I was in her lessons. 

Anyway, one day she sat next to me to help another student, and I could see her sweet sweet thighs upclose. I wanted to burst then and there, being able to see her purple panties from the back of her. 

I snooped down in my pants, grabbed my cock and rubbed as fast and as inconspicuously as I could, as I was in a class with other kids and obviously her being next to me. It took only a moment but I bust a huge nut all in my boxer shorts and a strong sedative feeling rushed over me. The adrenaline dump was insane. All be it, I got NO work done that day.