When I was in high school, my bf and I went to a theme park. It was a great time, and as afternoon turned into evening, we were both getting a little horny - we had just started dating about 2 weeks earlier, and were in the "jump my bones at every chance" mode. At one point while kissing, I knew my nipples were poking like spitzer bullets and I had no problem feeling his hardon just standing next to him.
The line for the ferris wheel was short, so I told him we'd jump into a car by ourselves and be able to make out "and stuff" for maybe five minutes. We got in, and once the car had rotated just past eye level, we started going at it. The cars stopped for about 30 to 45 seconds in each position to load and secure new riders. By the time the car was at the top, his cock was in my mouth and precum was running like a faucet. He filled my mouth and I swallowed just at the car came down to the 9:00 oclock position. It was a great, lusty, quick teenage blowjob - and I remember it vividly.
The car rotated down and then the ride actually started - I left my head in his lap and his cock in my mouth while it deflated - left it there for most of the ride.
When the ride finished, some of the kids we were with came up and gave us a "hard time" because apparently we were sort of visible if people looked closely. I became "cool" in the eyes of the friends who were there and saw.
I've always admired ferris wheels, and have given a few bjs and handjobs on them since. But that first one was special.