So explain why there are other characters who, despite the artstyle, manage to look more aesthetically pleasing in terms of "THICC"-ness than flabby fish girl (the boxer girl, for example). Why should I have to headcanon attractiveness onto one particularly ugly character when I don't have to do so for most others in the same show?
Also, fuck off with the "interpretation" bull. You're like one of those fan artists who take unattractive or old characters, portray them as a hot anime waifu or husbando, then fangirl over them with the thought that they actually look like that. If you're going to be a waifufag, at least be honest with yourself.