A/N: This is a sequel to Sam and Dean Meet Blair Waldorf/Blair Waldorf Meet Sam and Dean Winchester but it can be read as a stand alone too.

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Dean pulled into the driveway after a long day of work. He slid the pick up into it's spot next to his beautiful black Impala and headed towards the house. He was starving. Blair's cooking was finally starting to improve and he hoped that whatever she was making was not one of her experiments. Those never ended well for him.

As he started up the walk two blurs of dark and light hair came whizzing towards him. He scooped up his son and daughter, twirling them around.

"Daddy! Daddy!" His daughter Veronica shrieked as she laughed.

"Dad, I finished my model car today." Sebastian shouted. Dean smiled as they dragged him into the house. Hearing a car door slam Dean quickly spun around. The person standing in his driveway was the absolute last person he wanted to see.

"Hey kids why don't you go in the house and see if dinner is ready. I have to talk to my friend for a minute." He set Veronica down and both kids disappeared. The man approached slowly with his usual slow gait.

"Castiel." Dean spat out sure that this would not end well for him. "What the hell are you doing here?"

"I'm sorry Dean." Castiel replied.

"You always are."

"Why the hell are you here." Blair burst out the door and marched all 95 pounds of herself towards the trench coat wearing angel. "I thought we were done with you!"

Castiel visibly flinched, even angels were afraid of an angry Blair Winchester.

"It became necessary for us to ask for your help." Castiel replied. "Dean has experience with this kind of problem and we've been spread thin by other issues."

"What is it?" Dean asked.

"We don't know yet but you've dealt with problems like this before." Blair was studying Castiel trying to read the stone faced angel.

"Fine, we'll do it." Blair agreed and Dean looked at her surprised. Blair just told him silently with her eyes what neither wanted to admit. Castiel was only the first line and it would only get worse. "But you need to promise me that our children will be safe. We'll send them to visit Daddy and Roman."

"I'll watch over them myself." Castiel promised. "You'll have to leave tomorrow morning. Sam will meet you in New York." He turned to leave.

"Wait! New York as in New York City?" Blair called after him her voice edging on screaming.

"Yes, do a little research you'll find the reports." With that Castiel was gone.

"New York, huh?" Dean said reaching out to hold his wife's hand.

"I'll call and make the arrangements for Veronica and Sebastian." Blair hated when things came up unexpectedly and finding control in situations helped her to regain the balance she craved.

"I'm going to call Sammy." Dean told her kissing her forehead softly.

The Next Morning

Blair had insisted they take the train because it would be too expensive to park the Impala until the job was gone. Dean had grudgingly agreed. Sam was going to ride the train with them from Boston to New York.

"Okay darlings be good for grandpa and Roman." Blair said kissing them both. "Daddy and I will call you tonight. Behave on the plane."

"Come here give me a hug." Dean said kneeling down and pulling his children close. "Love you."

"Love you Daddy." They both chimed.

"Dean." Blair tapped him arm softly and then harder.

"What?" He asked sharply before following her gaze and his eyes widened. Castiel was approaching them wearing a t-shirt and jeans. Looking somewhat odd without his trench coat.

"Why are you here we're already going on this ridiculous mission now what do you want." Blair hissed softly so the kids wouldn't hear her.

"I promised to take care of them so I will be accompanying them to France." Castiel replied in his usual suiccent manner.

"And what just invite yourself into my father's villa?" Blair asked, getting mad at his rudeness but silently glad that someone would be close by to watch the children.

"You'll think of something." Castiel replied. "Hello Sebastian. Veronica. Your mother and father asked me to accompany you on your trip." He shook Sebastian's hand and smiled at Veronica.

"I'll call Daddy." Blair said moving away.

"We'll miss our flight." Castiel said. Dean leaned in closer.

"If something happens to them, angel or no I will kill you myself." He snarled. Castiel maintained his usual stoic expression and took each child by the hand leading them towards the security check point.

"We should go we have a train to catch." Blair said joining him.

"What'd you tell your father?" Dean asked once they were settled into their seats on the train.

"Cas is your cousin, we wanted someone to tutor the kids while they were visiting. He was skeptical but I think he bought it." Blair sighed. "Here goes nothing."

As Dean and Sam went to go find something to eat Blair stared out the window and contemplated her return to her childhood home. She imagined the scandal when news of marriage had broken five years ago. Gossip Girl here is appears the former Queen B has found herself a husband. A poor no-name leather jacket wearing mullet rock listening bad boy. How far the snobby have fallen. The society marms would be whispering the minute they arrived.

"Got you some iced tea and a peanut butter and jelly." Dean announced handing her the sandwich and drink.

"Thank you." He settled next to her, kissing her cheek. "Sammy made a new friend. I think he's turned into a man whore." Blair giggled. "You look tired you should sleep a little while before we get there. You'll need it." He folded a blanket into his lap and Blair laid her head down. Dean ran his fingers through her hair as she slowly drifted off to sleep.