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Remus and Sirius were standing outside the Potter's front door waiting for Harry to let them in but there was a bit of a hiccup. The five-year-old was standing in front of them hands on his hips and somewhat glaring.
“You're not wearing pyjamas.” Harry pointed at them menacingly.
Sirius scratched his head. “I didn't know we were supposed to?”
Remus covered his mouth to hide a laugh. “Is that a requirement?”
Harry sighed dramatically, “You cannot come in without them.”
Remus laughed, “We aren't allowed in without pyjamas?”
Harry nodded.
Sirius sighed and transfigured his clothes into red pyjamas.
Harry clapped “You turn Uncle Moony. Do green for Christmas.”
Sirius interrupted, “Oh Harry you don't want him in green that's Slytherin.”
Harry glared at Sirius, “Papa is a Slytherin I like them.”
Remus laughed and transfigured his clothes into green pyjamas.
Harry clapped again and cheered. “Yay now come do cookies with me.”
He dragged them into the house.