A conversation I don't think I have ever had before

on the way back, it's a long drive, T suddenly asked me the following rather supriseing question:

"Did you fart?"

Shocked I said no. and after thinking about it, asked what brought that about.
Apparently there was a smell I wasn't smelling and he thought it was me.

I guess that's a new level of comfort if you can ask your female friend if she farted.