Ok so this is how it went, I was in the backseat of the car. It was parked in the parking lot of a supermarket. My dad went in to get some food and left me there to wait. As I sat in the backseat of the car I started getting really horny. I felt myself getting harder in my jeans. I didnt think I could wait any longer, it would take a while to get home, and I wanted to cum right then.
I decided I would just masturbate. I unbuttoned my jeans and took out my hard cock. I started to slowly stroke it in my hand and it felt so good. It was exciting that someone might see me through the window. I was stroking myself faster and faster. I was about to cum, and stroked my cock as fast as I could and I came all over my hand and my jeans. It felt soo good to cum in public.