Because I can’t find the time or energy to sit and read an actual fanfic of this I made up some headcannons instead.
▪When they first get him Sirius has a panic attack because I can’t raise a child Remus! Especially not James’ and Remus just holds him close and lists all the reasons why he’s going to be amazing at this.
▪ Remus is also terrified but keeps it buried for Sirius’ sake.
▪Niether if them sleep when they first bring him home they watch him sleep in his cot all night and get terrified at any small noise he makes. “what’s wrong with him Remus is he choking” “that was a sneeze Padfoot”
▪They’re staying in a tiny apartment, the same place Remus and Sirius rented when they left school. After only a week of having Harry, Sirius announces he’s bought them a small house in the country side.
▪ The place is a dump. Practically falling apart but it’s theirs and Sirius can’t help but grin as he walks through the door.
▪Sirius decorates the place. Remus has hardly any input. He’s in charge of the bookshelves and stocking the cupboards with food.
▪In Harry’s room Sirius paints a mural on one wall. Two deers under a starry night sky. With quidditch posters on the walls. “isn’t he too young for this Sirius?” He also had photos everywhere. Of Lily and James and of James, Sirius and Remus at school and the new family of 3 all together
▪ Harry starts assessing Remus first calling him Mooney although it sounded more like “mooey”. Sirius feels deeply betrayed and refuses to talk to Remus for about a week. He actually threatens to make Remus sleep on the couch but just makes a wall of pillows between them instead.
▪ “How is this my fault Sirius?” “Because you’ve filled his head with… with … With cabbage!” “Cabbage?” “Yes cabbage” and then Sirius dramatically storms out.
▪They take a day trip to Diagon Alley and nearly get mobbed by people wanting to meet The-boy-who-lived.
▪Everyone’s very surprised when it’s Remus, shy and quiet and studious Remus Lupin who threatens menacingly to hex people with the slug curse if they got too close. “slugs? Really Mooney?” Sirius smirks as he pushes the pram down the street. Remus just blushes and stiffs his hands in his pockets “Oh shut it Padfoot”
▪ They have a sort of family tradition. Every night (more or less) Remus tells Harry a story about his parents. Sometimes true stories other times stories where James is a dragon slayer and Sirius is a court jester. Other times Lily is the knight in shining armour and James is the damsel in distres.
▪ Remus has Harry tucked on one side cuddled up to his side and on the other side he has Sirius who’s head is on his chest and his arms as wrapped around him,eyes closed listening to the stories of his best friends.
▪ Sirius likes to take Harry on his motorbike. Remus hates it because he has to sit in the side carriage with Harry wrapped in a bout a dozen blankets with giant headphones over his knitted hat to block out the sound.
▪This becomes a common way to get Harry to sleep.
▪ Remus and Sirius play exploding snap when Harry’s asleep over a couple of beers. Looser has to change Harry’s nappies for a week. Remus looses quite a lot and always calls for best out of three. The best out of five because he’s a sore looser. Either way he ends up changing the nappies