Passing gas during sex

So we were having sex, and he sat on my chest and was using what we call "big blue" ( thick and long ass dildo😍) because that's about the only way I can cum. I farted as soon as I came. Yeah that was pretty embarrassing. I played it off by telling him he pushed too much air into my lady bits and that he pressed into my uterus which caused the release... He believed it.