Castiel Novak was born with really bad autism and schizophrenia. Him and Dean fell in love in highschool. Dean loved him for how brave he was even with the mental disabilities. The only thing wrong was that Cas had no sexual desires at all... But Dean got over himself. He was honestly in love with the boy and he was willing up to give up sex for him. But then it got bad and Cas ended up passing away. The two medicines he was taking made a chemical reaction in him and caused him to grow cancer cells.

After he was gone, Dean was a mess. But Cas came back as an angel. And somehow they created a nephlim. And as an angel, Cas was no longer mentally handicapped. He acted normal. It was a hard adjustment for Dean but he loved it. It was plus for Dean because they fucked... A lot.

After their nephlim son, Lucas, was born... Cas decided to take the angel out of him to keep them safe from the rest of the garrison. But it was too late. The angels had gotten to Sam and Sam's fiance Max. They had taken Max away as a punishment for Sam not telling them where Dean, Castiel, and and Lucas were.

Cas felt guilty and went to heaven to hopefully get Max back. He did. But Max had no memory. And getting him back costed him his powers.

When he was powerless, he had those disabilities back. It broke Dean's heart because the illnesses always made his husband be in pain. Dean wasn't ashamed of Cas or mad that he wasn't like everyone else. He just didn't want the love of his life to be in pain anymore.

One afternoon, the happy little family was hanging out in the garden. Cas was watching the bees with his son in his lap. Cas was really good with him but he just wouldn't change him. The rest he could understand and just needed some assistance.

Dean was on the swing, dozing off. Cas was now laying in the grass and looking at the sky with Lucas asleep on his chest. Dean was peacefully falling asleep till Sam called and he jolted up.

"Hey Sammy!"

"Dean I can't do this anymore!"

"The thing with Max?"

"Yeah... It's breaking my heart. I want him to remember. I want him to still love me. He won't even hug me."

"I'm so sorry Sammy... How do you want me to help you?"

"I don't expect you to I'm just... Lonely..." Sam sighed.

"Me too, Sam."

"How are you lonely? You have your kid and your husband there with you."

"Not fully here. You and Max should come stay here."

"He won't... And what do you mean not fully there? Its back to how it was before...?"

Dean let out a breath. "His autism is maybe worse but I'm taking care of him." He brought the phone closer to whisper. "I'm already so fucking sex deprived."

Sam chuckled. "Go to a whore after work and tell him you were running late."

"Sam... I can't."

"Dean. Its easy. He's not going to know it. He's not smart enough to put the pieces together, is he? If he really loved you, he wouldn't stop you from getting some."

"He's super smart, Sam. He'd know."

"How bout you just try it. And if he's super smart... Then what is his disability anyways?"

"Autism and schizophrenia."

"How is he smart with those?

"He just is! He's so smart. You have no idea. Dont degrade him because you don't know him like I do." Dean got very defensive.

"Whatever. But either tell him you want sex or get a whore."

"No... But can we just hang out?" Dean asked quietly. "I could get Cas's father to come and babysit."

"Yeah! Tonight please. I'll come get you at 8."

"Okay bye bitch. Love you."

"Love you too jerk."

Dean hung up and walked over and sat beside Cas. "Hey love?"

"Hello, Dean."

"Do you mind if I get your dad here to help you babysit Lucas? Sam wants me to go somewhere with him tonight."

He smiled and nodded. "Have fun." He didn't want to be separated from Dean and wanted to go but didnt say it. "Where are you going?" He asked suddenly really concerned.

"I don't know, he's coming to pick me up... He's having a hard time with Max not being able to remember their relationship and just needs some brother time."

"Thats ok. I hope he feels better." Cas smiled at him, innocent and adorable. He was seeing things but tried to block it all out.

A while later, Chuck showed up and distracted Cas. He was there an hour before Sam got there. So he was pre-occupied.

Sam got there. "Let's go Dean!"

"Hold on." He was playing with his son so he gave him goodbye kisses then went over to give Cas the same. Cas hugged him and wouldn't let go. "I'll be back soon, I promise." He kissed his nose.

He hugged him tighter. "I'll miss you."

"I'll miss you too." He pet his head then pried himself away. He followed Sam out to the car quickly.

Cas just dropped his arms and let him leave with Sam. He waited for him to leave before he frowned and teared up. His dad tried to comfort him but it wasn't working. 
He didnt like that Dean forcefully made him stop hugging him. And so, he threw a fit. A bad one with screaming and yelling. Chuck ended up locking him in the bedroom the calm down while he held the baby.

Dean buckled and smirked. "Where to?"

"A bar!"

"Sammy... I haven't drank in years."

Sam shrugged it off and just drove. Once there, he bought Dean shots and a couple beers. He watched his brother gulp them down and pushed him into a group of half naked women. He wanted his brother to get laid so maybe he wouldn't be so uptight.

Dean clearly wasn't interested in any of them but when one stared grabbing at his dick, he got lost within his mind. She took him back to the bathroom and was already proceeding to get on her knees. Dean reached down to pull at her hair but tensed up when he saw his wedding ring.

The girl saw it was well and took it off and put it in his pocket. She started licking and sucking on the tip of his cock. It was better than Cas could ever do. She was a slut that knew every trick of the trade. And she distracted Dean to the point where he wouldn't know that she rolled his ring across the bathroom floor.

Dean pulled her up because he was needy and ripped her clothes off. She handed him a condom before she bent over the sink and begged to be fucked. And Dean complied and did everything he could to make sure she was pleased. She even came before he did...

The second he came however it all came back to him and he pulled away and started tearing up. He got dressed quickly.

The girl frowned. "Hey, where are you going?"

"T-to apologize to my husband." Then he dug in his pockets and his eyes widened. "Where's my ring!?" By this point he was sobbing and on the ground frantically searching. When he got it, he clutched it to his chest and ran out. When he found Sammy, he smacked him across his face and started running towards the car.

Sam followed. "Hey! What's wrong?"

"You did this! You forced me to fuck with someone I didn't want to!" He was slurring slightly but he was too upset to let the drinks get to him right now.

"I didn't force you to do anything. You did it on your own, Dean. The burden is on you."

"I just cheated on my autistic husband who hates anything sexual." He was on the verge of a panic attack.

Sam hugged him and put him in the car. "It's not cheating. He has said before that he doesn't want to hold you back and doesn't care if you go get some."

"But I care. I should abstain that he doesn't want it..."

Sam was trying not to get mad. "Not everything is about him. I bet he feels guilty that you take care of him."

"I know he does. I just want my husband back as an angel!"

Sam honestly was shocked by what he said. "Is that implying he's not good enough for you right now? Is it implying how sex driven you are?"

Dean wanted to yell and scream. "Fuck no! He's perfect the way he is. But I didn't have sex for 5 years. Then the angel thing happens and we constantly did it. And now I'm never gonna get any again. And I DON'T WANT TO HAVE TO GET A FUCKING BABYSITTER!"

"Hey. Shut the fuck up. If you really loved him for him, you wouldn't be complaining all the time about it."

"I do love him. But its unfair! He left me once. When he was an angel, he was damn near invincible. But now that he's human, I have a chance of him getting sick again and I can't have that."

"Well since having sex with other people under the permission of your husband isn't working, then tell him you want it and then do it."

"Sam, I will NOT. because he never wants it and I don't want to hurt him. I genuinely love him... He isn't mentally mature enough to handle it."

"Then tell him to grow up."

"He can't Sammy. Thats not how it works. His disabilities hold him back. But... He can do everything he needs or wants. I love watching him draw or talk about animals because it makes him so happy. You should see him with Lucas... It completes my world." Dean was blushing and smiling by the end of his rant.

"He can damn sure try to grow up then. And speaking of the kid. You never should've had him. Because then Max wouldn't have gotten taken. You two wouldn't have had to run around. And he'd still be an angel."

"What should I have done then? Killed my son?!"

"Aborted him early on. Problem would've been solved. But Now you have two kids. Maybe you could treat Cas like a kid and marry someone else."

"No. He was fine until you made him feel guilty about Max. So he went back to heaven to get his memory and then lost his powers."

Sam sighed. "Its not my fault. He was going to take the angel out of himself anyways. Also, powers were probably a lot on his shoulders. Don't be selfish. You have no idea what pain he probably went through even as an angel."

Dean nodded and stayed silent the rest of the ride. He smiled when he walked into his house and saw his father-in-law holding his son.

"Hey Dean. Did you have Fun?"

He nodded. "Where's Cas?"

"In your room... He had a fit while you were gone and was begging for you."

Dean's heart sank. While he was off fucking some girl, his husband was crying and needed him. "O-okay. I'll go check on him." He walkes up and knocked on the door.

Cas was crying in the corner and the rest of the room was a mess. He had bad schizophrenia that caused him to get very scared of everything and just break down. Those were common and Dean usually calmed him down pretty quickly. But that on top of one of his autistic fits... That was bad news. He couldn't tell what was real and what wasn't. So when he opened the door and saw Dean, he reached out to touch his hand to make sure he was real.

Dean was tense, "baby its me. I'm here."

Cas hugged him and started crying.

Dean held him close and burried his face against his shoulder to take in his scent. He rubbed his back as well. "Cas. It's okay. I'm home now. You're safe."

"Dont g-go." He whispered shakily.

That broke Dean's heart even more. "I'm not going to leave you, my love."

Cas's fit was caused by Dean breaking away from the hug and not saying I love you. Cas was trying to say it first but he got jumbled over his words and before he got it out, Sam and Dean had already left. But the second thing made it 10 times worse. He tried to apologize about the room being a mess but could only get out a few noises.

"Hey Cas? Don't hate me..."

"I- I... D-d-d-don't."

"Sam took me to a bar and got me drunk. After I danced... I had sex with a woman." He looked and felt so ashamed. He thought that Cas would hate him and leave him.

Really, Cas had no idea what he was saying. He wasn't dumb but too upset to process it. So he just whispered an okay.

"I'm really sorry."

Cas was trying to clean up the mess he made in the room and yelled when Dean got down to help him. "NO!"

"I'll help you baby."

"I want to do it!" It finally started sinking in what happened. He didn't care that Dean had that awful s word with someone. He told him he was allowed to go do it as long as he showers before they cuddled. But what really upset him was that his husband left when he was clearly upset and did that even when Cas just needed to be held...

Dean tried to hug him again but Cas shoved him out of the room and locked the door.

Cas didn't stay mad long. He needed his husband. 20 minutes later he ran out and hugged him. "I love you."

"I love you too, Cas."