How do you get my 11 year old 39inch waist sister to stop calling me fat im 12 4'10 n hve a 27 inch waist?

i don't think she's commenting on your weight, if your relationship with your sister is anything like mine was at your age, she's probably only saying it to get a reaction out of you, or you may have annoyed her in someway completely unknown to anyone but your little sister, don't worry it'll stop an you know your not fat an that's all that matters, an if its really bothering you talk to her an tell her how its making you feel