Looked at the title, and thought "yep, done both"
Where er you be let your wind go free
Its better to fart and stink a little
Than twist your bowels and be a cripple.
Let it rip
I'd just say "Well you made me orgasm so strong that all my muscles squeezed so tight it just came out. Aren't you so wonderful darling to make me do that "
I do remember talking with a young American woman on a perfectly straight message board a while back. She confessed to having a fart fetish.
Nothing wrong with fanny farts, just an occasion for a giggle.