Toyoko: If I et this right, you are a shapeshifter, so like me, you don't really need a bra.
Yuki: Huh? I was told that with my size I really needed a bra!
Toyoko: I would still recommend one some of the time, but you, like myself, aren't at risk of sagging or pain related to them.
Toyoko: Also, that is a yukata, no one should have recommended a bra with a yukata or kimono from what I understand. Though binding, especially for a kimono, would be traditional.
Yuki: So, if you don't need one because you are an android, why do you wear them?
Toyoko: Sports bras for doing activities, and other bras because hey look nice!