About a month ago, me and my girlfriend went out for dinner and a few drinks, at a local Mexican restaurant. We went back home a few hours later, and we were both pretty gaseous after eating bean burritos and having a few beers. We'd been together for over a year, and fortunately, we weren't shy about farting in front of each other. So, anyways, we had a couple more beers and were both pretty horny, so we went to bed and started fooling around. She sucked my cock for a few minutes, then I told her to lay down so I could give her some head. I buried my face in her crotch and started eating her pussy, running my tongue up and down her snatch. She was moaning and squirming around, and then I grabbed her legs and pushed them up till her knees were up against her chest, so I could really go to town on her vag. About that time, she ripped a nasty sounding fart right in my face, I started to laugh, but then I noticed it was a little more than a fart. She blew liquid diarrhea all over my face and the bed sheets. I instantly gagged and puked my guts out. She turned beet red and ran into the bathroom apologising and crying. Fortunately, we both had a good laugh about it later that night, and are now more careful after we eat Mexican food.