"Well, you see, the Yule Ball's coming up, and I have this dilemma: I can't dance. Care to teach me?"

Neville beamed and nodded earnestly, then paused as though considering something and timidly replied, his smile turning sweet and nervous;

"Yes, but- but on one condition: you go with me to the Ball."

You grinned and winked at him as his cheeks flushed pink.

"Sounds like a win-win to me."