i'm not sure actually? maybe not? if i did it'd probably be super subtle so i wouldn't really consider it inflation at that point idk ! i have one main reason why i might not draw it

so like, in my art style, i usually try to use semi-realistic physics so even a realistically sized human cock (which means not cartoonishly large) is like the upper extent of what my sona can fit inside her,, so i can't easily imagine drawing her belly swell in size without also imagining how much it'd hurt! but, like, a slightly large abdominal bulge from being filled with cum? that's okay- actually that's hot, i can do that