I doubt Charlie and her piano key teeth are going to say anything back. Nik can pull the homophobe card to deflect Charlie’s race card and she only punches down anyway. The only time she’d respond is if she thinks she can get some of Nik’s subs.
Also, as gross as Nik is, hes not nearly as big as Charlie even though he eats like a bottomless pit on cam often. Charlie would have some explaining to do about why her “diet*” and “work-out*” routine aren’t working if she attacked Nik’s weight and she wouldn’t want to do that.