She knew these girls, but never talked to them much

(chapter originally by Draco13 at writing.com)

As she realized that she had an audience, Yukari succeeded in snapping her bra open, making it rest loosely on her arms. Surprised as she was, she still only hesitated a second or two before she removed her bra and threw it away. This action seemed to finally prompt a reaction from her shocked viewers.

"Ummm, why'd you just take your top off and throw it in the garbage? Are you feeling alright?" Yukari was touched by the girl's concern, even as she started to unzip her skirt. As it floated to the floor, Yukari gave her a brief answer.