Couple of things...from talking to many other people about boobs, natal women and girls and gay men included, more people are attracted to breasts than some people may think! Not necessarily a sexual attraction, but more of a strong fascination with them (on other women).
I had high hopes that I might end up as a C cup as I always heard that I could expect about a cup size less than my closest female family member (mom). Sadly, I waited a few years too long and I would be more than happy with a B cup, today. I'm around an A, but due to my shape, I don't even fill that fully.
Nipples...I'm stuck in the middle of development and will most likely never advance from here. Puffy nipples. Areola and all. The one time I've gone in for a mammogram the technician asked me about my nipples and she was surprised when I told her that it due to my transness. Ugh. Wish I hadn't said anything now.
I did purchase nipple suction cups a long, long time ago, but was too embarrassed to use them, even around my husband who is fully supportive. My ex-girlfriend also bought them, but she actually used them. They did wonders for her! She was in the same position as I am but now is more than satisfied with her nips.
I should also mention that I found out after my mammogram that, while my boobs are small, they're very dense. Not as firm as my ex-girlfriend's, but the clinic wrote that I needed to be careful as their machines couldn't necessarily conclusively determine if there were any lumps due to the density of my breast tissue. Actually, mine are pretty soft and squishy and I'm surprised to hear that they're so dense that the clinic felt they needed to say something. Maybe my prior gynecomastia had something to do with it.