Dean sleeps for about an hour but he can't get much more out of the night, so he gives up and stands by the window for a while. He keeps Cas' ring in his pocket but fingers his gently. How can he marry an angel? It shouldn't seem like a big deal given they've managed to reproduce together but he manages to have butterflies and doubts in his stomach.

After what feels like ten hours, the alarm on Sam's phone goes off and he wakes up groggily. He sees Dean at the window and asks him what's wrong.

"Huh? Nothin'. Just couldn't sleep very well."

"Sorry."

"Not your fault."

"I know, but I'm still apologizing."

"Right…"

Dean goes to the coffee maker in the room and prepares a pot while Sam gets up and dressed. "So I think we should swing by and see Susan again."

"And what, get killed by her over reactive paranoia?"

"Maybe she's calmed down? It's worth a shot. If we play our cards right we might be able to get more info out of her and see why she's so scared of the Nephilim."

"Yeah, okay."

After a couple cups of coffee, they head over to the hunter's house to check out what's been going on. She's not home, though, so they wait around an hour and then she shows up.

"Why are you guys still here?" she asks, stepping out of her van. She walks to the house and the guys follow her.

"Just need to follow up on the demon in your basement," Dean tells her. "Can't be too careful, ya know."

"I don't think she's going anywhere."

"And what about you?"

Susan stops in her tracks and turns slowly to face Dean. "What about me?"

"Do you still think that the Nephilim is gonna come get you?"

"I don't think it's going to come get me. I'd just rather be prepared and stay off it's shitlist."

Here, Sam chimes in. "You certainly seemed to think differently yesterday."

Susan presses her lips together and folds her arms. "Okay," she begins stiffly. "Maybe I overreacted. Sorry. But you know what they say about Nephilim."

"What?" Sam and Dean ask in unison. Susan leans closer to them and says, "They have God powers. When they're vengeful, they come and kill anything and everything. As far as I know, there's nothing that can stop them."

Dean gets a little heated. "Why are you so sure that the Nephilim is vengeful?" he asks in a harsh, gruff tone.

"Because of what she did in Hell. You heard the demon, right?"

"Well, yeah, but that's Hell. Wouldn't we want someone to go tear that joint a new one?"

"But the angels are scared of her, too."

"Do you have proof of that?"

Susan narrows her eyes at Dean. "Just what the demon said. And if we're believing everything she says, then yes."

Dean narrows his eyes in response. "Alright," he says slowly with an unsure nod. "You watch yourself, okay?"

"You watch yourself. If any sort of all-powerful creature would want to smite someone, it's going to be you guys."

"Why?" Sam asks, trying to keep the peace in the conversation. The less Dean speaks, the better.

"Whatever the Nephilim is mad about I'm sure is related to something you did. Every time anything is angry it's because of you guys."

Dean glares at Sam and says, "I think it's time to go." Sam gives his brother an "I know" smile.

"Alright, then," says Sam. "If she has new things to say or if you um, see the Nephilim, let us know."

"I will," Susan says rather coldly. She heads back into the house. "I will."

"Father!"

Mary comes running up to the guys right as they step inside the main room of the bunker. Dean greets her with a smile and gives her a big hug, lifting her up into the air. "There's my girl!"

"We missed you!" Mary says, giggling. "Did you have a good trip?"

"Yeah," says Dean. He sets Mary back down and she goes running off to Sam, where the same sort of reunion is made.

"How have you been, Mary?" Sam asks.

"Good. Mother and I have been spending a lot of time together. He's feeling well."

"Awesome," says Dean. "Where is he?"

"In the kitchen."

While Sam and Mary catch up on what they've been doing and what they plan to do, Dean sneaks off to the kitchen and finds Cas standing over a pot on the stove.

"Hey, Mama," Dean says in a low growl. "What's cookin'?"

"A can of soup," says Cas. He turns and looks at Dean with a warm, lovestruck smile. "How are you?"

"I'm great," Dean tells him as he saunters up to the stove. He wraps his arms around Cas' waist then turns him and pulls their chests together for a long, warm kiss. They close their eyes into it and smack their lips hotly. Cas moans from his throat and pulls away slightly. "I missed you, Dean."

"Missed you too, baby." Dean keeps kissing Cas, first on the lips and then his cheek and jaw, down to his neck. Cas swallows a tight lump in his throat and lightly paws at Dean's chest.

"I-I have to watch this soup," he moans.

"Right, right," Dean says, clearing his throat. He lets go of Cas except for one hand on the angel's back, which gently rubs him and allows him to tend to the stove.

"Sometimes we cook together," Cas says.

"That's awesome."

"She enjoys it. I have trouble finding things to stimulate her."

"Yeah, I know. Her brain is pretty crazy. And speaking of pretty crazy, listen to what happened with that demon in Susan's basement."

Dean goes on to explain the last day to his partner. While he works through what the demon said, how Susan flipped out and then corrected herself the next day, Cas makes enough sandwiches for everyone and puts them on the table. He pours a bowl of soup for Mary and then calls her and Sam in.

"Where did humans hear about Nephilim?" Cas asks Dean near the climax of his story.

"I dunno," says Dean. He takes a seat at the table and grabs up a sandwich. Sam and Mary come in and begin to eat with them.

"Thanks, Cas," says Sam. "This is really nice of you."

"Of course," Cas says with a coy smile. He joins them at the table and eats a little something, too, while Mary has her soup.

"Am I really that dangerous?" the little girl asks.

"Well," Sam explains. "It depends. You have the power to be very dangerous, but the question is will you use it? I don't think you want to be angry and hurt people, do you?"

Mary shakes her head. "No, I want to help."

"That's my girl," Dean mutters with a grin. He finishes his sandwich and sucks the mayonnaise off of his fingers. "Those people are just being dicks. Demons should be terrified of you, but humans? They need to chill out. You're half-human yourself."

"Is that good?"

"It's very good," says Cas. "You have your own vessel."

"O-okay," Mary nods, looking like she doesn't quite understand everything Cas is implying. She takes another spoonful of soup and swallows it pensively.

"Hey, Cas?" Dean asks, leaning over to the angel pretty close. "Think I could talk to you in private for a little bit?"

"Of course," says Cas. He looks to Sam and asks if he can watch Mary, which Sam is more than happy to do. So Dean and Cas go back to their room and once the door is closed, Dean reaches into his pocket and holds the rings in his fist. "What did you want to talk about?"

"Well uh, just us and our relationship."

"Oh? What about it?" Cas stands in the room with his arms hanging at his side and eyes fixed on Dean curiously. Dean shifts on his heels.

"I've been doing a lot of thinking," he says rather slowly. His cheeks are bright red beneath the freckles.

"And?"

Dean hems and haws. He winces and strains.

"Dean?"

Then he takes a deep breath, closes his eyes and says, "Do you wanna get married?!"

Cas' eyes widen. He gasps. "Married? What for?"

"T-to honor our commitment and maybe, I dunno, make it nicer for our ki—Mary. What d'ya say?"

The angel smiles and his eyes sparkle. He steps up to Dean and hugs him. "Yes, of course I will. Though I'm not sure what it entails."

Dean is relieved. He hugs Cas back and puts a kiss on the top of his soft, dark hair. "I thought maybe we can just have rings and say we're married. We don't need a priest of anything."

"Whatever you wish. Where will we get rings?"

"I have 'em."

The man steps back slightly and opens his hand in front of Cas. "Here," he says, showing Cas the rings. "Put it on this finger."

Cas extends his ring finger to Dean and the man slides it over it. Cas appears to be mesmerized by Dean's actions. "You like it?" Dean asks. The angel looks up at Dean and says, "yes."

"You need to say 'I do,' 'cause it's marriage and all that."

"Ah," Cas utters. His voice falls into a whimsical, soft little whisper and he coos, "I do."

Dean leans to put their foreheads together and just stares at Cas for a moment. He's a slightly overrun with emotion and not sure what to do. Cas gives him a kiss. "Are we married now?"

"Not quite," says Dean. With a gentle grin, he takes his ring and hands it to Cas. He sees the inscription and blushes. "When did you get this engraved?" asks the angel.

"I've had them for a while," Dean mumbles. "Been waiting to ask you."

"Oh…I like this very much," Cas whispers, smiling at Dean. "Now what?"

"Put that one on me."

"Yes," Cas agrees. Dean presents his finger and Cas carefully places it around it. "Do you…do you like it?"

Dean grins real big and nods. "I do," he says. It's anything but traditional, and that's just perfect for Dean. They clasp their hands together and share a long kiss. Once it's broken, he nuzzles their noses together and says, "I know that your life is gonna be rough once I'm gone, but I want you to know that wherever I am, I love you."

Cas closes his eyes. He lets go of his partner's hands and wraps them around his body instead. "I appreciate that, Dean."

"Wouldn't want any less for my wife."

"Your wife?"

"You," Dean says with a smirk. "You're my wife now and I'm your husband."

"Ah, yes, of course. Marriage. That makes sense."

"Are you happy with it?"

Cas nods. "Very. I'm a mother and a wife, now. I never thought that would happen. I never even thought that it could happen, though it's here now and I'm delighted. I'm happy to spend my life with you, and to go through these new experiences with you by my side. You're important to me, Dean, no matter what."

"Yeah," Dean agrees. "You're important to me, too, Cas. You're so damn important. Best thing that ever happened to me."