Is liking prominent belly on a man normal? or is it some sort of kinks?

hi F(20), I like cats and as you may know kittens have this cute lil prominent tummy when they just fed. I started noticing i like seeing prominent tummy on men when i first seen our professor from online class. He's short and skinny but his lil tummy is prominent like it's asking to be belly rubbed. I was having impulsive thoughts of just caressing the lil tummy. Imagine his polo and the button on his tummy is tryna break free. It's so cute. I knew already before that prominent tummies caught my attention, it's like boobs to me. I can't take my eyes off of it. It just looks so pettable and i wanna gently pet pet it and caress how cute it is. I'm confused if it's normal or a kink. Idk how to tell my man too, he got that cute prominent tummy too and i just love it so much. I know he's insecure with stuffs but i always tell him i love his body and everything he is genuinely. And when he send me fotos of his tummy tryna be funny pretending to be prenagent i always save the foto asap and i just love when he does that. Idk how to tell him i like his tummy not in a weird way but genuinely, or yea maybe in weird way i wanna pet pet it and caress it and just give it some love because it's so cute and I'll die in peace if i ever finally touch one. I need your opinions :0 Is it normal? or a kink? And how do i tell him about it? Thanks!