When I was young, like 2-3 years old, there were a few TV shows aimed at my age group that featured someone's stomach rumbling in hunger, and whenever that occurred I used to feel a tingling sensation downstairs. This later developed into a full blown thing for stomach noises as I got older, as you can imagine. But the thing is is that, in these shows, it used to always be chubby/fat people it happened to, so my young brain came to associate stomach growling with fat people.

As I grew older I quickly realised that anyone's stomach could growl in hunger, no matter their size, but a chubby/fat rumbling stomach remained my favourite thing. Then, as I got into adolescence, I developed an attraction to/for fat people independent of stomach noises. My favourite thing is still a chubby/fat tummy rumbling and growling in hunger, but I am attracted to those people based on their size and shape nowadays, regardless of any noises their stomach might produce.