Fred could never back down from some friendly competition. Betting on who would win and duel? Say less.

Of course, that was only amplified when you came into the picture.

Buying out a good shelf of chocolate frogs from Honeydukes one evening, combining your savings, the two of you set out on bet to see who could get the most diverse collection of cards.

"Hah! That's your third Dumbledore!"

Fred snickered loudly as he watched you pull up the Dumdore card from the bottom of the tin, a look of disdain on your face.

"You owe me a week of transfiguration work."

He grinned slyly with a triumphant gleam, knowing full well you had already lost to him before you got the chance to open the last few tins of chocolate.