Ok, hear me out. (Just finished binging up through Chapter 30 with Khione and the Hot Springs) - Since Matoi is now part of Jamie, and they're apparently sharing certain things, what if some "assets" of Matoi started bleeding through back to Jamie. I can see it now:
Mizzie: "Let's see you keep pretending to be a boy with THESE beauties."
Ashley: "WHY does the Tomboy end up with the biggest boobs?! What kind of bullshit-F95-cliche is this?!"
CJ: "Uhhh....nice tits, bro"
Mayu & Mikan: Can't wait to take Jamie bra shopping and give advice.
Sarah & Teresa: Immediately notice CJ's lewd thoughts.