[MadameBusty]

What do you think is the maximum that someone can grow if they use a variety of methods and take it seriously for many years? Like 4-5 years, or even longer?

There are some trans people who say that they experienced breast growth for up to 10 years.

That's very true in my case I've been on hrt since a child so for many many many years now and still experiencing growth with added NBE, however as I started as a child I have the same possibilities as a natal female breast growth wise as I started hrt well around the time natal women start puberty, I also inherited big breasts from the women in my father's German side though so genetics definitely play a part.