I do not own any of the avengers.
All of the Avengers were sitting in the main living room watching the a random tv show while Serena was playing on the floor with her Elsa doll when she suddenly did something miraculous "dada" she said and when they all looked up they saw she
Was standing on her legs and smiling at them they all gasped and she immediately started stumbling towards Clint so he held out his arms to her and once she reached them she giggled uncontrollably and Natasha looked expectantly at Tony and Tony said "what?" "shouldn't you be calling somebody??" she asked him ".........shit!" Tony said and ran to the phone to call Pepper.