OK, but I have to ask - what do you mean about women being boob-obsessed?
This is probably a cultural thing, or maybe I just hang out with a bunch of perverts, but whenever I'm out with girl friends the conversation always seems to touch on boobs: how big or small each others' are, bras vs padded camis, how they wish they were closer together or further apart etc etc. I'm not introducing the topic, I promise!
Plus on the occasions I get (re-)introduced to people, which in the past necessitated a bit of "here's our friend, you might know her by another name, but she's a girl, OK?" the usual response is "hey, you have boobs! Can I feel? You can touch mine if you like!"
Given I'm a westerner living in Japan there's a good chance I'll outgrow most of my cis friends, which will probably get me even more attention...