Caught in a Parking Lot

I´ve done this a few times so far! Driving to a pretty secure spot on a public parking lot, start watching porn on my laptop, get pretty much nude and jerk off!

But this time was special!
I drove to a part of the parking lot where I can see all the other cars and people and where pretty much nobody walks by all day.

I started my computer and began surfing. Didn't take long until my dick in my pants was hard as hell, so I pulled down my pants and slowly started stroking while looking at all the other cars and people.
That made me so horny that I had to be careful not to shoot too quickly.
After a while I decided to go totally nude which is another huge turn on for me because getting dressed again fast is pretty complicated in the drivers seat of a car.
So there I was, totally horny and nude jerking to porn in my car not far from cumming when I suddenly realized a 35 to 40 year old woman (about 1.70m tall with normal body and b Cups) walking around the back of my car walking towards my door! (As I saw later, she was having her smoking break at the emergency exit of a store)
My heart stopped for a moment when I saw her looking at me. That was just too much excitement at that moment and I shot a huge load onto my belly and chest!

I just tried to cover up and tried to apologize, but she just laughed and told me that she had watched from the back of my car since I got naked, that she wanted to see all of me and that she enjoyed the view of a young cock and sporty naked body sweating, shaking and cumming!

It was one of the most embarrassing as well as one of the hottest things that have ever happened to me!