Natasha's first defection was in 1995 when she was 15 before she was sterilised, Natasha gave birth in 1997 to Ivanna Romanoff-Barton, Ivanna was taken by Dumbledore 6 months later, and Ivanna was given to the Potter's and then she was taken by Red Room agents not long before Natasha was found and taken back to the Red Room with her memory wiped, Natasha doesn't know Ivanna is her daughter, she doesn't know she had a relationship with Clint Barton, she doesn't know she'd defected to SHIELD all she knows is the Red Room, HYDRA, Yelena, KGB, Melina, Alexei. Natasha defects to SHIELD (again) but this time with Ivanna (who Natasha adopted, without know Ivanna is her daughter) eventually in 2007 Natasha and Clint married, Clint adopted Ivanna knowing full well she was his daughter. Years later, the Avengers are send to Hogwarts to watch movies of Ivanna and Natasha's lives. And in which Natasha gets her memory back. --------------------------------------------------------------------------------------------------------------------------------- Clint Barton x Natasha Romanoff | Clintasha Ivanna Romanoff-Barton x Peter Parker | Widow Spider (I think)