This happened while in college that my girlfriend and I went on a spring break trip with 3 of our other friends due to one of our friends family’s being apart of a private flight service and he offered for us to join the flight instead of driving because we were going to the same area by random chance. We of course took it since it meant no driving and we didn’t have to pay a dime since the number of guest made no difference. Since we were flying there and back we decided to do the deed on the return trip so we could get a lay of how every would act during the flight and make a plan to try our best to be discrete when we actually did it. The flight down went smooth and we came up with the plan of how we were going to do it. The morning of the flight back my girlfriend started to act as if her stomach was hurting and overall not feeling great. We left around noon and after about 30 minutes in the air, she continued the act of being sick and went to the bathroom. Five minutes later she “texted” me to bring her water so I got up to grab a water and told them I would be right back and that she was needing the water. I slip into the bathroom and she is waiting for me and quickly drops to her knees and pulls my dick out to get it hard quick and slightly lubricate it but that wasn’t needed because she was soaking wet from the excitement. I bent her over the sink and I slid right into her and we had a quick fuck till I came into her pussy. I cleaned up really quick and left and she did the same coming out a few minutes after me, still acting as if she was a little sick. That was one of the few things we did that year in order to lower our Rice Purity test for fun and ideas on what to do.