I am the oldest child in the family. My parents come to stay with me for 3 weeks in summer with my sister's child. When they are here, I give them about $1000 in cash so they can have money to go shopping. I also pay for everything while they are here. Somehow this arrangement was always expected and this summer trip happens every year. I found out that my mother has been spending money I had given to her to buy gifts for my younger sister. My younger sister is dependent on my parents financially as well as taking care of her child. I feel very upset that indirectly I am financing my younger sister's expensive shopping habit. Tonight, I refused to purchase a brand handbag for my sister. My mother became furious and said I was selfish. My mother always favored my sister. I told her that I should not be a piggy bank for my sister's shopping. I know my mother is expecting to take care of her financially as she age. I am afraid that it will also means indirectly supporting my younger sister financially. I would love to hear what you would do in my situation. My mother always have been very manipulative and selfish. I have always been her care -taker even when I was 6 years old.