At that point, she's better off lightly binding with a soft material. Good gawd.
At this point, why even bother? Her boobs aren't getting any support from that thing and honestly, she has about six other body parts that need more support than those sad things on her chest, anyway.
A bra is neither making her more comfortable, nor making her boobs look better, nor making her various pudges, flops, and jiggles less obscene. Those are the reasons for bras.