While I was on his lap during a road trip, I made my male friend cum in his pants [FM]

This year, my wonderful friends—four men and three women—and I decided to take a road trip. Since none of us had cars at the time, one of my buddies borrowed his father’s vehicle. I had to sit on someone’s lap because I’m the tiniest one because the car couldn’t fit us all; one of the girls sat on the other girl’s lap, and I sat on Eric’s lap (fake name The trip was about six hours long, and during the first few hours I could feel Eric hardening while I was sitting on him before softening and hardening once more, etc. Since I believe it to be commonplace and in light of the fact that I was donning a miniskirt and thong underneath, I didn’t mind. The driver is the only one who is awake, and even Eric, who was rock-hard, is sleeping after about three hours. As soon as I sensed that he was awake, I lifted up my skirt so that his cock was on my underwear and pussy lips. I then started grinding on him, and I believe he didn’t mind because he gradually put his hands around my hips. I continued to grind on him because I could feel his cock teasing my lips.