Chapter Text
It was summer before their last year and twins are starting to spend more time at Grimmund place. They managed to convince Molly to allow them to help with cleaning their living spaces to keep themselves entertained, which would mean they won’t have as much time to cause chaos at home. Of course this also meant that they spend more time away from home and her watching eyes as she did her house duties, and have more privacy to perfect their future shop projects.
It was one of those days now unordinary days that started to be their daily routine. After little cleaning they wandered into the kitchen to prepare some food. Fred was sitting in the corner on the floor with parchments spread around him, and that position allowed him enough time to hide shop stuff depending on who was entering the room. George meanwhile was moving around putting the last touches on their sandwiches and preparing the tea.
That was how Remus and Sirius found them when they entered the kitchen, that is if they even noticed them too engrossed in their own little world. They weren’t arguing per se, but Sirius was waving his hands around as he explained, their voices heated and little tense.
Twins looked at each other after Georges Hello gents went unacknowledged. Still on the floor Fred didn’t bother hiding their papers. Even this little time they spent around Sirius was enough to see how fun and laid back he can be, and regardless of Lupin’s status as their ex professor, he was cool one and from little they heard about him and his after curricular activities they were sure he wouldn’t snitch to Molly.
So George went back to levitating the sandwiches to the table and finishing their tea, and Fred to reading one of their experiments thinking how to fix and perfect the product. So when he heard deep sight and exasperated Padfoot his brain didn’t automatically grasp the importance of that word. But a loud crash had him snapping his head to the sound and seeing the shocked face of his brother. Who by sudden losing of control during the spell certainly immediately understood what was said.
“Did you say Padfood?” George asks in shock and that had Fred standing up and staring at who he now realises is probably one of the Marauders.
Both men already jumped at sudden crushing noise but flinched once again when the second twin showed himself from who knows where.
“Yes that’s his nickname from back in school," answered Lupin, “I’m sure Harry, Ron or Hermione mentioned it by now? No?”
Twins stared at him, still in shock, looked at each other and yelled “NO!”
“Believe me professor we would have noticed by now if they had” Fred finally spoke.
“Well lads, let me formally introduce ourselves then. I’m Padfood also known as Sirius Black and this is Remus Lupin sometimes known as Moony” came a cheeky reply from an ex-convict, but confusion was still slightly showing on his face.
Twins looked at each other once more then promptly dropped to their knees and started bowing to the pair, making them even more confused than before.
“Pleasure sirs, forgive us for such disrespect sirs” exclaimed Fred
“If we've known before… Please forgive us. When we get our hands on Potter, oh he’s a dead man. Dead” continued George.
This left two older men even more confused and Remus was starting to be little uncomfortable.
Sirius was first to speak. “I don’t follow”
“Has little Potter by chance mentioned how he came to possess a certain Map?” Asked Fred, and when they nodded their heads he continued “well did he also happened to mention what that map meant to us?” He got two negative shakes.
“Tut Tut. Harry will certainly get an earful when we see him, nay well probably writer to him later today. This Map, when we finally managed to open it and realise what it can offer, was probably the main reason we became what we are today” started George
“Of course, not that we wouldn’t be like this with out it-”
“Certainly not Fred, but it accelerated the greatness that was already there you see-”
“Made us use our time more efficiently-”
“More productively-”
“Made it oh more interesting…” finished Fred witch wide grin on his face that was reflected on his twin.
...
Four of them would start talking how map ended up witch Filch, how twins being as they are got little nudges from map eventually, and get it to open, little or little more help.
Have them realise that Harry is the son of Prongs, who Wormtail is, how he wasn't seen on map is cause non Marauders don't show except for each other or others when their magic is the one opening it (Harry was recognised as Potter by map).
Talk about how they made the map, have twins then ask few advice on their products. Sirius will immediately help but Remus will be hesitant at first but pretty soon give in and help especially when he sees how brilliant twins are.
Have twins confront Harry about him not thinking of them and never saying the nicknames in front of them. Eventually have Harry be even closer with twins, if tree of them and Sirius and Remus talk about Marauders school days, so Harry also has more stories.