She gets into the groove of things

"Thanks, Weiss. Now, Team RWBY, let's PARTYYY!!!" Ruby screamed, dragging her two friends onto the dance floor, one arm around Weiss's waist and one on Blake's arm. Surprisingly, Weiss's costume felt... thin. Her body felt very warm through the fabric, and she seemed to slightly stiffen when Ruby grabbed her.. Blake was also very stiff moving onto the dance floor, taking very careful steps for some reason. Regardless, the trio found themselves on the dance floor, and with some more insistent coaxing from Ruby, Weiss and Blake joined her in dancing, slowly growing more and more fluid in their movements as time went on. However, it wasn't all going smoothly for her, though Ruby didn't know that.

In her nervousness, she hadn't tied the corset properly, an all the movement from her dancing was slowly loosening the strings in the corset, causing it to shift around on her chest. Little by little, her breasts were becoming more exposed, something the students around her were becoming more aware of. She was also working up quite a sweat, which the flashing spotlights quickly highlighted as her pale skin reflected them even more. Through all this, she remained oblivious, dancing up and down and shaking what nature gave her. Her corset kept moving too, until it reached her nipples, which managed to hold onto the corset, if only barely. And then, the perfect circumstances occurred. The song at that moment reached the lead up for a bass drop, and gathering her energy, Ruby jumped at the bass drop, sending the corset down and baring her chest. The crowd around her shouted in celebration, which she mistook for general party cheering and kept on dancing. Eventually, the strings came undone and the corset slipped off her body, where a quick fingered student grabbed it and fled the dance.