happened to me with an ex-girlfriend who used to love having her asshole played with. She used to give my cock a spit shine, then i would rub my saliva-lubed cock between her ass cheeks. One time, in the middle of all this, she starts farting! not just one, but a few - rather long ones too... I was already getting close to cumming, and feeling the vibrations of her asshole directly on my cock sent me wild - I came right there and then
