[New position] My girlfriend [19] farted in my face while having 69

I love to eat her out and she likes to blow me so I suggested 69. She reached orgasm in no time and I really enjoyed it for the reason that she gave me oral like I've never had before. 10 minutes in, she stretched her legs in pleasure and broke wind into my face. Honestly, it didn't smell like anything and I wasn't turned off at all but she was so embarrassed that she instantly got up and begged me to pardon her. I tried to soften the atmosphere by saying "It's ok, It was getting pretty hot and I needed a breeze" but she didn't take the joke too well and got even more embarrassed. Then I reassured her by saying that it happens to the best of us and it was nothing to be ashamed of. I think she was impressed on how I handled the situation and I feel like she trusts me more now, which is a good thing. However, we tried to 69 again later that week and it wasn't as intense as the first time, I doubt that she orgasmed and I think that it's because of what happened the first time. I'm sure that from now on she will be very self conscious while doing 69 and that will hinder the pleasure we get from it, I don't want to stop just because of what happened. Any suggestions?Not sure what to do...Thanks!