🤔 Why is this weird to my boyfriend?

Today I saw a girl on a motorcycle, and I stared for two reasons. One- I’ve been really wanting to get into riding a motorcycle and been looking to learn. Two- that ass was FAT!! I mean, I fantasized myself looking just like that and thought.. well I’d actually have a bit more fat hanging over but I think I could pull it off 🤭🤣 she looked good. I’m aspiring to look like that! I told my boyfriend Omg I saw this chick riding a bike today and i want my ass to look just as fine as she did on that thing! He scoffed and said “what a lesbian thing to say” ….. what? Why am I feeling prickly about this? Why is he feeling prickly about this? I didn’t think it was “lesbian” of me lol….i thought it was normal to see what other people have and want the same thing.. I thought he’d like to see me looking like that also.

Wtf guys lol. Do explain this dumb ass moment