A/N: So the prompt was Pond, but I used Swamp, I guess it's the same thing?
"I HATE YOU, FRED WEASLEY!" Alice Longbottom yelled, standing up after falling into one of the Portable Swaps that Weasley's Wizard Wheezes sells.
Fred, who had been hiding behind a suit of armor, waiting to see who'll fall in the swamp, laughed and revealed himself.
"How's you know it was me and not James or some other prankster?" he asked the girl with a smirk. Alice mumbled the incanation to the Hot Air charm.
"It always is you!" she exclaimed angrily. "You knew that I'm the only one who would be in this corridor right now! What are you playing at, Weasley?"
"You know I don't like it when people call me Weasley," Fred murmured. "There are about a million Weasleys at Hogwarts!"
"Way to change the subject, Weasley," Alice said, and before she could turn around and walk away, Fred kissed her.