Its not his bussiness but why do you want to make your breast smaller?
Its sexy to have nice and big boobs. I think that if you lost your weight (no matter how thin or fat you are) your breast will became smaller.
It happened to me. I lost my weight really fast and now I cry for my boobs
I have been thinking about how it would be if I did plastic surgery to make my breasts bigger but I know that it would make me feel disgusted. Okay its my problems.
Do what you feel is best for you