Is it selfish that I dont want my sister to go to the same plastic surgeon as me?

She has a habit of following me and copying me although i am younger. Further she likes to claim things as in when were watching a movie, if she thinks a character is the most attractive, she will say they have similar traits and try to say that I have similar traits to another character whom she finds less attractive. She knew that purple was my favourite color, and she would try to claim it and wear all purple and say thats her favourite.

Is it selfish that I dont want my sister to go to the same plastic surgeon as me?
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