A/N: For more about Trickster the kitty, see my story "A Trickster's Christmas"! :)
"Hey Loki, I think your cat is finally warming up to me!" Tony scratched the purring black-and-white feline beneath the chin.
"Is he now?" asked Loki his place on the kitchen barstool. While Tony was occupied petting Trickster, Loki quickly switched Tony's cup of Sprite with a pre-made one of clear vinegar, and then immediately went back to pretending to read his book.
"Yeah. It's about time, especially since I was the one who rescued him from the Humane...UGH! LOKI, I'M GONNA...!"
But both pranksters had already vanished. Loki smiled.
"We make a good team, Trickster."