I apreciate very much the transformation of a normal woman into a huge female bodybuilder. I also apreciate comics and animations, but only as they remain realistic, not into baloon women.
You should read manic comics then. Theyre really good, and Manic does a great job of drawing muscular women without it looking too freaky or weird. Just search up "manic comics fmg" and you'll like them too.
I'd consider it a fetish. For those like me that enjoys reading muscle growth transformation stories and videos. There is usually a sexual side to it