Turns out that having some kind of artistic talent is a graduation requirement at Beacon. Something like music or dance or art. Weiss smugly has it covered, and unfortunately Blake's smutty fanfics don't count, so Ruby, Yang and Blake seek out Jaune and Ren to learn some proper dance. Weiss comes along to mock them.
Weiss: "HA! You're desperate enough to ask Arc for help? You truly are doomed!"
Yang: "Hah! What could you teach me about dancing, VB?"
Jaune:
Very intense, but calm "... Ren? The tango."
Ren: "The tango?"
Jaune:
"The tango."
Ren starts the music... And Jaune takes the lead with Yang.
View: https://youtu.be/EZz-OCiMzfs?list=RDEZz-OCiMzfs
He is in total control the entire dance, even as Yang begins to try and assert herself, he confidently retakes the lead and practically manhandles her through the song... And she's left bright red and panting by the end.
Jaune: "Any questions, ladies?"
Weiss:
bright red "... W-Well, given my musical background I suppose I can go next."
Ruby: "Nuh uh! I have two left feet, Weiss! I'm dancing next!"
Blake:
"Stealthily" bumps Yang out of the way to take Jaune's hands.
Yang: "Wha-HEY! It was one song!"
Blake: "I'm very committed to my education."