My AMAB Partner is Getting Busty - And I Actually Like It

So my AMAB non-binary partner has been on HRT for two years. His goal was / is to develop secondary feminine characteristics. I have been supportive throughout this but was pretty skeptical that much would change. For the first 6 to 10 months... very little progress. He (he's okay with those pronouns) was always thin and had a somewhat light frame for a male. For a long time it seemed like all the hormones were doing was giving him mosquito bites / buds.

I tried to be encouraging but I was skeptical. I'm AFAB and full chested and, after looking into trans breast patterns and reading a site called Second Type Woman, it seemed like it was pretty common for growth to be very moderate. He did have some obvious changes in skin, body odor, and his butt rounded out right away- but his chest was basically flat.

Then all of a sudden he started rapidly 'plumping' and it seemed like he suddenly had a pair of Bs. It was honestly pretty shocking and I remember thinking, 'wow my boyfriend has legit boobs.' After a few months his growth stagnated.

He changed his HRT regimen and added supplements and started growing again at a very fast rate. Sometimes nothing would change for few weeks and then it would seem like he would jump up a cup size.

I recently had him try my bra on and we're officially the same cup size. I've checked different trans sites and he's definitely had above average results.

The weird thing is that I actually find myself enjoying it. I've never really had a thing for boobs, but I've found that I really do think his new chest is attractive. It's fun to look down his top and see cleavage and I honestly like having something to cup and hold. He also always been a total boob guy and used to be pretty handsy so it's a bit fun to have the 'shoe on the other foot' so to speak.

Anyways, I just don't see a lot of women who enjoy this and I thought I'd share. I'll probably delete later, but I really do like that I'm no longer the only one with big boob problems lol.