you were Tony Starks child and your even smarter and more calculating then your father though you were very lazy and weren't very motivated to do anything and you were an Avenger before you were kicked out and replaced by Peter and Tony kicked you out of his place and adopted Peter taking him under his wing and you moved away to Gotham city to start fresh and soon you caught the attention of Bruce Wayne and he took you under his wing and soon adopted you when you told him that you have no one to look after you and so you joined Bruce Wayne's family and became a bat kid and met the other kids and their bat named which include Cassandra Cain who is Batgirl, Tim Drake who is Red Robin, Barbara Gordon who is Batgirl, Dick Grayson who is Nightwing, Duke Thomas who is The Signal, Jason Todd who is Red Hood, Stephanie "Steph" Brown who is Spoiler, and Helena Wayne who is Huntress though at first they were all a bit on guard around you but they eventually warmed up to you and you became part of the family and they were all very surprised with how good you were at building things and creating gadgets and soon you started joining them on patrols, balls, and other things the Wayne family would do and you eventually forgot all about Tony Stark who was starting to get very worryed that you haven't tryed coming back to him at all and soon the Avengers came to Gotham to partner up with Batman since one of Batmans villains has been causing them trouble and when they entered the bat cave Peter was shocked with how much stuff was in it while Tony was still on edge worryed about where you are but tryed to focus on the task at hand when Batman showed up being his normal serious and broody self

Batman: crosses his arms over his chest watching them So you guys are the Avengers

Tony: is wearing his Iron Man suit Yes thank you for leting us meet with you tonight

Peter: is completely awestricken at all of the high tech that is in the Bat Cave and wants to look around the place

Thor: looks around the place not saying anything

Black Widow: is impressed with all of the tech and security in the cave and with all of the bats

Baner: is also impressed with all of the high tech everywhere

Captain America: yes like Tony said thank you for leting us met you sire its an honor to met you