do any of you bottoms feel pressured to be skinny?

i myself am vers, but i for some reason feel very pressured to be skinny for when i bottom for my boyfriend.i'm not overweight nor anything but I could lose some more weight (I used to weigh 66kgs and now 73kgs, I'm 179cm tall and when I weighed myself today I got shocked and went instantly to the gym lol) and I kind of feel pressured to lose it, to have a flat stomach and a skinny body. I don't know, I know it's wrong and that it's a stereotype of the classic twink (bc I'm a twink according to my boyfriend) but I just can't not feel that way???