Imagine: You've been dating and hunting with Sam for 3 years. On a hunt gone bad you ended up possessed by a demon. The demon walked into the library, Sam didn't realize you were possessed til a drop of holy water caressed your skin. The demon stood up as Sam was still sitting down.
**********Demon: You know Sammy, y/n, has sexual thoughts about your brother. Oh yeah, she wants to ride him more than the impala
Sam: Why should I trust anything you say?
Demon: Doesn't matter if you do or not, I placed that insecurity in your head now Sammy. You won't be able to let it go.
*Dean walks in*
Dean: Exorcizamus te, omnis immundus spiritus, omnis satanica pot-
Demon: Dean stop..I know you want her...I may not be her but I have her body..
*the demon smirks*
Dean: potestas, omnis incursioinfernalis adversarii, omnis legio, omnis congregatio et secta diabolica, ergo draco maledicte, ut ecclesiam tuam secura, tibi facias libertate servire, te rogamus, audi nos!
Sam: y/n! Baby?! Please answer me!!
You: Sammy..I'm so sorry, remember what she said, and it wasn't true. You know that right?Sam: Of course I do baby, now come here
* he pulls you in and hugs you *
*********