Cas and Sam woke up to the sound of crying. Cas got out the bed and rubbed his eyes.

"You got it, Cas?"

"Yes, Sam. Go rest."

Cas walked out the room and hurried to the nursery. He noticed Jonathan was doing the crying and he picked him up. "Hey John. Daddy's here." Cas bounced him a bit and walked around the room. "You just want attention, huh? Yeah, that's it."

John calmed down and started to quietly coo.

"There ya go buddy." Cas was about to sit down in the rocking chair, but heard Rachel start to cry.

He hurried over and gently picked her up in his other arm. "Hey little girl. What's wrong with you, huh? You were getting jealous?"

Rachel cooed at Cas and snuggled into his arm.

Cas smiled and walked over to the rocking chair and finally sat down. He started to lightly rock back and forth.

"I love you two. I love you so very much. You two mean the world to me. I don't know what I would do if anything happened to either of you. You know we'll protect you, right? Me, Daddy, and Uncle Dean. We'll all look after you."

Rachel and John cooed at the same time, causing Cas to smile brightly. They both started to suddenly babble, this time making Cas tilt his head. He suddenly felt arms wrap around his neck and a kiss on his temple.

"I love you, Cas." Sam softly said as he let him go.

"I love you too, Sam."

Sam gently took John from Cas' arm and held him close. He then took Rachel from him too. He cradled both of them in his arms. "You can go back to bed, Cas. I got them."

"Are you sure, Sam?"

"Yeah. I'm positive."

Cas stood up and kissed Rachel and John before leaving the room.

Sam waited until Cas left and flicked his eyes to black. "Dumbass." He muttered before looking at the babies.

"You two are so cute. Crowley would looove to meet you." The demon smirked.

"Too bad he won't."

The demon whipped around and saw Cas standing with Dean. He tried to leave, but couldn't. He looked around on the floor for the devils trap, but couldn't find one. Then, he looked up. "Damnit..."

"We're not as dumb as we seem you demon bitch." Dean said with a dark voice. He walked over to the demon and took his niece and nephew. "Tell Crowley, when you go back to hell, that he'll have to go through us to get to these kids." He turned and walked away from it. "Cas, go ahead." He left the room with the kids.

Cas glared darkly at the demon. "Never come near my family again. I will personally kill every single one of you if you come anywhere near them." He raised his hand to the demon and seconds later, black smoke started to leave Sam's mouth and fall to the floor.

Once the demon was gone, Cas lowered his hand and went over to Sam. "Sammy? You alright?"

Sam was fine, but was ashamed. He nodded, but didn't make eye contact with Cas.

"Sam?" Cas gently cupped his cheek. "Look at me."

Sam looked over at him. He had tears in his eyes, that were close to falling.

"Sam, don't cry. It's not your fault."

"I-I tried to fight it, but I couldn't... Cas, I almost hurt our children... I'm a terrible father..."

"No, Sam don't say that. It's not you that tried to hurt them. It was the demon. Not you. You're not a terrible father. I promise." Cas softly kissed Sam. "Let's go get the kids and put them to bed."

Sam nodded and gently took Cas' hand. They walked out the nursery and found Dean and the kids in the kitchen.

Dean looked up at them and smiled a bit. "Everything good?"

"Yes, Dean. Everything is fine." Cas gently squeezed Sam's hand, then let him go.

Sam went over and gently took John and Rachel from Dean. "Thanks, Dean."

"You don't have to thank me, Sam." Dean stood and pat his brothers back before going off to his own room.

Sam kissed his children before lightly bouncing them. He smiled at them when they started to coo. "You two gotta go back to bed."

As if on cue, they both started to close their eyes and go to sleep.

Sam smiled and carried them to the nursery, Cas trailing behind. He walked in and gently put them in their cribs. He turned around and walked back to Cas.

Cas smiled and wrapped his arms around him. "We did good, Sam. Very, very good."

Sam hugged back. "Yeah, we did, Cas."

Crappy ending. I know. And I'm sorry for it.

Also, I'm gonna need you guys to comment some ideas!