This is the reason I keep a worn out t-shirt in my car. I often get a full erection (and even pre-cumming) when I'm driving especially if I'm stressed and haven't cum in a couple of days. When this happens without my even touching it, I have to choice but to satisfy my needs, so I do.
I just pull over in the car (side street or parking lot) pull down my pants and just do. I shoot my sperm into the shirt I keep in the car just for this purpose. Without it (like in the video) I'd potentially have a big mess getting into my pubic/chest/stomach/thigh hair etc with that full body orgasm. With the t-shirt I just wipe my penis and pull my pants back up feeling much calmer.
I just pull over in the car (side street or parking lot) pull down my pants and just do. I shoot my sperm into the shirt I keep in the car just for this purpose. Without it (like in the video) I'd potentially have a big mess getting into my pubic/chest/stomach/thigh hair etc with that full body orgasm. With the t-shirt I just wipe my penis and pull my pants back up feeling much calmer.