Hello there ! I'm Sygdir and my fetish goes more towards blowing than inflation.
As long as there is some puffy cheeks involved, I just love to see anyone blowing air, a balloon or even inflating someone by mouth. I like the whole "feat of strenght" aspect of it. Watching someone taking a big loudy inhale before blowing with all his/her might into or at something is a major turn on for me !
Since we may have some common interests, Iwanted to share a little story that I wrote with all of you !
It's non-popping and involve a LOT of blowing (female inflator and male inflatee)