You were an old family friend of the Winchesters. Your dad was close friends with John so naturally you grew up with Sam and Dean. It was weird though because even though being not related you and Sam both got visions and shared the same birthday and age

Now, you and Sam are 24 and Dean is 27 as you guys are in the car on your way to Oregon to look into a case of a missing girl. A virgin specifically

It was a quiet ride, the windows down as Dean drove the impala, ‘No rest for the Wicked’ playing faintly on the radio. Sam had been quiet and so had you, unnatural for the usually talkative people you are