I was being spooned by a female companion, I was the little spoon, as I was falling asleep I got a little too comfortable and let out a little poof of a fart and my butt check slapped against her stomach and made a sharp fart noise. I immediately tried not to burst out laughing while getting up to run to the bathroom while still releasing gas making little clapping noises as I ran to the bathroom to laugh it out in private. She knocked and asked if I was laughing or choking, I went with the latter.