I don't have any pics, but I have experienced it once.

I went to a concert with my ex grilfriend (who was still my gf back then), and when we drove onto the highway (it was 1 am) she leaned over and told me she was horny.
She rested her head in my lap, undid my jeans, and started licking my dick.
It quickly grew in her warm mouth and she started sucking me off.

driving at 120 km/h and knowing anyone with a reasonably high car could see what she was doing got me really hot, so after about 10 minutes I went off the highway and stopped on a gasstations parking lot. we got out of the car, and I fucked her there, leaning up against the car.
I pushed her onto her knees, she started sucking dick again, and when I came, I pulled out and covered her face with my hot cum.
We then got back in the car, and when I dropped her off at home, and kissed her goodbye, I tasted my own cum on her lips. She was still covered in it.