Ruby wins

Ruby was speed. Swirls of rose petals filled the ballroom as she blitzed the stuck up white haired girl.

Any other time she'd have been mortified and embarrassed to be darting around naked in her new school. But right now she just wanted this stuck up rich girl to leave her alone. Talking didn't work, so that just left fighting. And she was good at fighting even if she lacked Crescent Rose at the moment.

The petite red head moved like a blur, striking wherever her opponent wasn't guarding. A slap on the ass there, a pinched nipple there, or a retaliatory slap across the noble face of the SDC heiress. Every time Weiss was hit she moved to guard that area only to leave a new area unguarded that soon fell prey to Ruby's ****.

Yang knew better than anyone not to get Ruby mad. Ruby usually went with the flow of things and tried to talk out any problems that arose peacefully. But when she got mad, she really got mad and there was little that could calm her down. Ruby wasn't fighting to really hurt her opponent. She wanted to humiliate her.

Suddenly, a white glyph appeared right in front of Ruby, who moved to just barely miss it. Was that a semblance? Then she'd best finish this.

She dodged more glyphs as she moved in for the kill. She borrowed a move from Yang, getting low and wrapping her arms around the white haired girl's thin waist. Her breasts shoved into the other girl's shapely rump as she then used her momentum to lift the heiress off her feet and slammed her into the ground as Ruby bent backward in a good attempt at a suplex that shattered the girl's aura.

Satisfied, Ruby got up and gave the stunned Weiss a shove, the girl rolling and coming to a stop with her bare ass pointed up in the air. Weiss lay there dumbly, stunned and exhausted.

Ruby smiled is satisfaction as she walked over to the defeated Weiss and gave her two final big slaps on both cheeks of her ass. The girl's pale behind was red with impacts from Ruby's hand.

"And that's why you don't mess with me." The silver-eyed trainee said with a smirk. Weiss only groaned in response, the heiress moving from her undignified position of having her ass in the air to instead flopping flat on her back with her legs spread, unintentionally showing off her sex.

At that point, Ruby remembered that both of them were still naked and in the middle of their first day at school. She sighed as she bent down to pick up the still groaning heiress.

"Come on, let's get out of here before we're seen again."

"...You brat. ....How dare you do this to me..." Weiss slurred out quietly as Ruby dragged her toward a nearby closet.

"I'm sorry for accidentally stripping you. But you shouldn't just attack people. You want to settle this more we can fight again tomorrow."

"...Dolt..." Weiss answered.

Ruby sighed and dragged Weiss to the unlocked closet before returning to retrieve both their suitcases. She really hoped she wouldn't have to personally dress the heiress. She had had enough contact with Weiss's body for one day.