Men, what did your girlfriend do that was disgusting, but you liked it?

An ex-girlfriend long ago tried a lollipop, decided she didn’t like it, and just stuffed it in my mouth straight from hers. For some reason I found it quite hot even though I am usually wary of anyone doing anything unexpected like that due to my past.

It didn’t turn into a fetish or anything like that but in the moment it turned me on quite a lot.