you and Dean met on a hunt many years ago, you had a usual night of love and he thought it was the usual one night... but it was much more.
in fact you got engaged in secret at first, then little by little over the months you also told Sam, then everyone.
Dean was madly in love with you, he showed it in every possible and imaginable gesture, gifts, kisses, cuddles, he even allowed you to calm him down when he was angry and he confessed to you everything that was wrong with him instead of keeping it inside like he always did.
one day he was talking to Sam, a little skeptical and a little anxious but you didn't understand, you were in the kitchen after all.
one evening Dean asked you to go out with him and you said yes, when you went out and ate, he took you to a quiet beach and after a bit of chatting he got down on one knee and asked you to marry him and of course you told him say 'yes'
now, you were in your closet getting ready, with your white dress and hair done.
when you are prepared, go out and arrive in the church.
Dean was at the aisle happy and holding back tears, Sam was next to him as a witness.
Dean:"Sammy.. she's beautiful.." speaks softly and smiles