Brothers girlfriend

This was one of my first experiences and really got me into this fetish about 3 years ago. For some backstory me, my brother, and his girlfriend used to go fishing all the time when i was a little younger. She was around 5,7 long blond hair and thick thighs with a pretty flat chest, she wasn't crazy hot but she was pretty cute. Anyway after fishing she was us driving back to my house to drop me off. About halfway there she started laughing then leaned sideways and farted, It was maybe 3 seconds long. The sound was crazy i think it was the way she was sitting, it legit sound like someone ripped a piece of fabric. She starts laughing and my brother just looks at her annoyed, I play it off laughing but actually made me really horny, It was the smell that really got me. The best way i can describe is the smell from a hog farm if you grew up anywhere in the Midwest you know what I'm talking about. It wasn't super strong but man i had to act like i wasn't trying to inhale it.