He **really** gets off on my weight...

So I was hanging out with a guy friend the other day and we were cuddling which turned into making out (we haven't had sex yet). Then he wanted me to get on top and essentially crush him, I did and he seemed to really enjoy that. He seemed to be getting off on being almost smothered by me(I'm a fairly heavy girl, just over 2x his weight).

This went on for a bit, we were clothed but I was just wearing a loose top. We made out and he fondled my boobs for a few minutes and then came in his pants!!

I've never experienced anything quite like this, it was all quite interesting has anyone else experienced anything similar?