Oh, you're curious. That's alright, I get it, I'm glad I exposed you to a new flavor of degeneracy today.
Basically, I blame it on the fact that (if I remember right) my second and several other erections (first was the blueberry scene from the Charlie and the chocolate factory reboot) were to an episode of Wizards of Waverly Place where Selena Gomez's head inflated. Disney Channel seemed to rerun that episode quite a bit, so I had a lot of time to realize that it made me feel weird, but not entirely bad. Then, a couple years later I find actual inflation porn on DeviantArt, which obviously I like, but it wasn't until years of being a degenerate and seeing some art from artists who were into more obscure inflation sub-fetishes that I realized I really liked head inflation, along with a lot of other weird stuff. Really, "normal" inflation gets boring after a while, when you realize a lot of shitty artists just take a girl and make her a sphere with extremities and don't make any special effort.
As for it not being realistic in any way, that kind of comes with the territory. One of the main reasons people laugh at/fear the inflation community is because although it is possible IRL, the real-life effects are nothing like the art and are gruesome, even lethal. Being an inflationfag pretty much forces you to accept that your fetish is kind of weird, silly and impossible in real life without causing injury or death and I'm ok with that.>Sleepover
Never heard of it, link scene pls and I might check it out.