Would Not Repeat
One of the most mortifying moments of my life was getting caught doing this. My girlfriend at the time and I really wanted to try, so we booked seats on a redeye, thinking no-one would pay us any mind. She went into the bathroom, and I joined her a minute later. I go in, but as soon as we get something going we hear BAM BAM BAM.
It was the stewardess banging on the door and saying “Come out right now! I know what you are doing in there!” We look at each other in horror and I instantly lose my turn-on.
We button ourselves up and skulk out to major stinkeye from everyone sitting nearby (several people were woken up by the stewardess banging on the door/yelling). Had to sit through the rest of the flight with blue balls and extreme shame. The stewardess pointed us out to the captain as we were getting off the flight. 1/5 would not repeat.
Story credit: Reddit / underthere