you were working a case with Sam since Dean was helping Bobby.

Sam and you were dating and have been for 3 years since he came back to hunting and he was planning on proposing but he decided to see how u would react with pretending to be married first before he decided to find a time to pop the question.

“hey i got you something” sam smiled at you and pulled out two fake IDs for working the case but they were married.

he handed you yours and waited for ur reaction while holding the files he was gonna show u for the case.