Well I go to a catholic high school in a city about half an hour from where I live. Quite a few people from my town go to the school and this year there were so many people that a second bus was issued. Because of the second bus, not too many people are on the bus, about twenty people max, and I sit with a group of about eight or nine other people and we usually take up the back six seats three on each side. Quite frequently I've been sitting with a certain guy, we'll call him Andy for now. Anyway we're usually the closest to the front in our little group so we face the back so we can talk to everyone else.
One day I was leaning over the back of our seat trying to see something in one of the back seats, when I felt Andy's hand on my knee. At first his hand was just there but he soon found the courage and he was exploring my lower thigh with light sensual brushes. I could feel my clit throbbing. I'm trying to keep my face neutral as he continues up my leg. He's now at my very high inner thigh and I'm sure if I wasn't wearing jeans he would have been able to feel the throb of my clit through my pants.
After about ten minutes of this I lower myself back but I'm still on my knees, and I end up sitting on his legs that he stretched out underneath me. He doesn't seem to mind me sitting on his lap so I glance down casually to see where his other hand is and he's mirroring what he's doing to my thigh on his. I very carefully lower my hand and take over on his thigh. I couldn't think straight but I was still holding up the conversation, as I always talk a lot on the bus.
We arrived at the turn off to someones stop, when I felt an orgasm coming on. My breath was coming in shorter and shorter gasps. By now I had cut myself out of the conversation, because my words were coming out all mixed up. Anyway we hit a bump on the gravel road and I climaxed right there on the bus. Both Andy and I remind each other of our time on the bus with a light brush of the thigh in the hall or on the bus. I still don't know if he got as much pleasure as me but I'm sure neither one of us will forget that day on the bus.