How to stop girlfriend from getting Breast Reduction?

Anonymous
My girlfriend who's 19 wants to get a breast reduction but I pleaded with her not to. I know they give her back pains and they jiggle around but I love them! I really don't want her to get it done! She's going down two sizes! I love her boobs and I love her for who she is. She knows I'm not happy with the this.
I know I should do what's best for her and what she wants, I always have! I've always put her first but not this time.
I told her that she's lucky to have such amazing boobs and her friends are always telling her how they wish they had bigger boobs. I've kept her on stall and she's thinking about it but what can I do?

I'd rather loss her boobs than her but I can't let this go... I know I'm bad or not a good boyfriend because I'm not putting her first but I really don't want her to go through with it.
Updates
+1 y
I'd like to add that I got circumcised for her.
How to stop girlfriend from getting Breast Reduction?
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