The Avengers needed somewhere to hide. Clint took them to his home. They were very surprised when they saw that he had children and a wife. But the biggest surprise came when they saw you. You are Natasha's sister. The Avengers, except for Natasha, Clint and his family, don't know you. A few months ago, Clint offered you to hide there. You came downstairs, and you leaned against the door frame and waited for Natasha to notice you.