Dean's Daughter (Supernatural)

Devyn Winchester is Dean Winchester and Evren Maas daughter. Dean and Evren had a one night stand when they were in high school. When Evren found out she was pregnant it was too late to tell Dean because he had already left town.
Devyn's mom gets killed in a 'house fire' when she was 6 months old. Nobody knows who her parents are so they send her to the only person they could think to send her to. Ellen and Jo.
What happens when Dean and Sam show up when she turns 16? I guess gonna have to read to find out.