Cas and Dean had been married for 4 years. After a year of dating shortly after Cas gripped Dean out of Hell they got married. Sam never thought Dean as gay but was ok with it because he fell in love with Gabriel but was crushed when Gabriel was killed by Lucifer. It took Sam a while but finally accepted Gabriel's death. They were supposed to get married once the apocalypse was over. That's probably why Sam said yes to Lucifer and jumped into Lucifer's cage.
Yes, Castiel and Dean are the most perfect couple with the things they have had to deal with. Dating while Sam was addicted to demon blood while fucking the demon bitch, Ruby, then getting married shortly after Sam set Lucifer free. No matter that anybody threw at them they stuck together. No matter what the two of them did they never stopped loving each other and never left each other. Sam and Bobby thought they were insane for staying together sometimes. Like when Dean almost said yes to Michael, or Castiel become 'God' and setting Leviathans out into the world.
In some way Sam admired Dean and Cas for their devotion for each other. Dean and Cas weren't the normal 'couple'. They never had that honeymoon phase in their relationship. They don't call each other baby or babe, sweetheart or sweetie or any other lame couple nicknames. It was Dean and Cas. Dean would sometimes call Cas Angelface, HuggyBear, and Chuckles. Castiel usually just sticks with Dean, or my love. They are causal around each other, like best friends…with benefits. Sam is fairly warned when they were going to get their freak on and Sam sleeps in the Impala that night.
Even after they went to Purgatory and Dean got out and Cas didn't Dean stayed loyal. It hit Dean hard leaving that God forsaken place without his oh so loved husband. No matter what Dean kept the gold ban around his left hand ring finger. When Cas, somehow, made his way out of Purgatory Dean was overjoyed. The second Dean saw Cas, he wrapped Cas into his arms in full embrace. Cas loved it. He loved seeing his husband once again and knowing he was safe. Sam slept in the Impala that night.
Sam, Dean, and Cas had just finished a hunt with Charlie Bradberry again when they were hit with another hunt involving their grandfather and a Knight of Hell, Abaddon. They had managed to get a key to a bunker in Kansas and shoot a bullet, with a devil's trap engraved in the tip, in Abaddon's skill then slicing her into pieces, put in boxed and buried in cement. They lost their grandfather they never knew they had on that hunt. Henry Winchester, Man of Letters. He told Sam and Dean that he was proud of them before he died. Cas, Dean, Sam buried him near the deceased friends of the Men of letters. They then went to see if that bunker was still even there. It was amazing. Dean and Cas finally had their own room. Sam and Cas were overjoyed with all the lore and files the Men of Letter had. Sam stayed with his nose stuck in research and filing while Cas and Dean spent a well needed time together, just them two, alone.
Dean fixed up his and Cas's new room as Cas sat on the bed and watched his husband work. "Dean, do you ever thinking about children?"
"I used to but after everything we have been through I don't think it's possible. I don't want to raise a kid in this environment. I don't want the kid to become a hunter like me, you, or Sam. I'm not raising a kid like my Dad did."
"Well, nothing bad is going do in the world. Maybe we could stop hunting. Maybe not completely but work the phones for other hunters. Since Bobby is gone someone should be able to do it."
"We don't even have enough money to adopt or get a surrogate. It doesn't seem right to run credit card scams on adoption."
"Could you keep your mind open?"
"Sure, I will keep thinking about it but it might be a pipe dream." Dean said pulling out his wallet.
"We will find a way. We will start a family, Dean."
"I hope we do, Cas." Dean smiled looking at his husband then back down to his wallet. He pulls out this old picture and sticks his wallet back into his pocket. He smiled. He stares at the picture for a little while. "Hey, Mom." He whispers before set the picture of him and his mom propped up on a light.
Cas smiled and got off the bed and wrapped his arms around Dean. "I love you so much."
"I love you, too." Dean smiled before turning around and kissing Cas. "Let's go see what Sam is up too."
Cas nodded and they laced their finger together before walking out of the room and down to the big room where Sam had his nose in a book. "What are you up too, Sammy?"
"Looking through the Men of Letter stuff. They have stuff we have never anywhere of"
"That's awesome, now we can hunt and monster won't even know what hit'em." Dean smiled. That's when Dean's phone went off. He looked at it then answered it.
"Hello? How did you get this number?" Dean asked confused. Sam looked up from what he was doing when he heard that phrase. Cas sat down in a chair and Dean sat beside him.
"This isn't Charlie. I'm a friend of hers. Are you Dean Winchester?"
"Who am I talking too?"
"I'm a friend of Charlie Bradberry. She called me a few moments ago telling me to call this number and ask for Dean Winchester and get him to come over to her apartment. Something is wrong with her and I know."
"Calm down, me and my brother will be over to Charlie's house. Don't worry and stay at your house. We have everything under control."
"Thank you. I'll text you her address."
"Ok, just don't call this number again." Dean hung up then looked at Sam.
Sam looked confused. "What's going on? I heard Charlie's name?"
"Her friends called my number. Charlie apparently call him last night tell him to call me and asked for me to get me to come to her apartment."
Dean's phone beeped and he looked down at it. "What was that, Dean?" Cas asked.
"Her friend texted me her address. Cas, are you ok, hanging tight her for a while?"
Sam stood up. "I can watch the bunker while you are gone and clean the place."
"Thank you, Angelface." Dean said before kissing his lover and grabbing his jacket. "Come on, Sammy."
Sam sighed and grabbed his jacket and they walked out of the bunker. "I wonder what Charlie got herself into."
"Or followed her this time. She doesn't find trouble. Trouble finds her. She's like a Winchester." Dean said getting in the car.
"I hope she's ok."
"I hope so, too. Now let's go." Dean said turning on the car and blasting AC/DC before Sam turned the volume down.