AITAH for saying no to my sister?
Me and my sister do wax at home on our own. For so many months, I have been waxing for her while she would do it once in a blue moon for me. Most of the time I be going around without removing the hair from my arms and legs because she doesn't have time or she is tired.
Today, she told me to do it again because she has an important event tomorrow. I said I would do it only if she pays for it. I joke about that a lot since I do waxing for her a lot so this time I was serious. I'm pissed because whenever i tell her to do waxing for me, she refuses. Even my mom supports her with it, saying I don't need it much because I'm mostly at home. I was pissed. Because mom never says a word when my sister says no to me for any work. So my mom was mad when I said no to my sister. She called me selfish and told me I was jealous of her.
So now my sister is upset, she told me she won't do it now and she'll go just like that to the event tomorrow. And my mom is sentimental that her precious daughter will go with hair on her arms and legs. You all tell me if I'm wrong or right.
EDITED: my mom isn't like that every time. I love her, really. but sometimes it hurts to see her brush me off like that when I need her support. I'm just mad about not getting any appreciation or compensation. and thank you for supporting me. I feel so much better. I was feeling guilty and now I know I shouldn't be guilty about it.