That makes sense. You are talking about intercrural sex. I've mostly heard of it being referred as frotting.
One guy that wanted to do it used the word "sumata". He said that's how Japanese call it.
Kudos to you for being able to conclude with that technique, even with the guy not appealing much to you.
I've never been able to unload doing it, even when being a lot into the guy. I guess each person has it's own "boiling" point.