[Vijfsnippervijf]

Short answer: I already had them from puberty and I like them as they fit a new vision I have about myself.

A slightly longer answer: At age 18, I looked at myself properly one day after my birthday and found out about the breasts Mom was always talking about. This, along with some other minor details I noticed about myself, started a very hesitant start of transitioning into a non-binary person, and I felt that slight breast growth fitted into such an image. I especially noticed this after seeing an art exhibition of dynamic collages: one of them depicted a man, but when I pulled a cord, I saw two large breasts below the top 'he' was wearing. I knew for sure, at a single glance, that this is sort-of the direction I want to go for.