"Well, what can we do to stop this?" asked Dean.
Chuck shook his head, answering, "It is of utmost importance that you two stick together and that you don't stay long in one place. I can protect you until you finish school, but from then on, you two will have to travel the world together."
Dean nodded. A life on the road with Cas would not be so bad.
Chuck added, "One more thing, happy eighteenth birthday, Dean."
Dean looked at his phone. It indeed was his eighteenth birthday. This realization gave him an idea.
"It looks like we're stuck together forever, huh Cas?" joked Dean.
Cas nodded slowly, raising an eyebrow in suspicion.
Dean continued, "Why don't we make it official and get hitched? What do you think of that, Chuck?"
Chuck nodded and responded, "I'm God, I'm here, and you're meant to be, so why not?"
Dean looked at Cas and said, "I will do whatever it takes to protect you and keep you from harm, and I'm guessing you will too."
Cas nodded.
Chuck finalized the marriage, sealing the bond between his son and Dean. He smiled sadly as Cas and Dean made their way to the impala.
In the car, Dean said, "It's only a few months till graduation, so as soon as that's over, we hightail it across the country, stopping along the way. What do you say?"
Cas replied, "Yeah, but what about Sam?"
Dean answered, "Sammy will come with us, and we'll make sure he goes to school until your dad's protection wears off at spots along the way."
Cas nodded, "I like that idea."
The two boys held hands as the car pulled away and sped off into the night.
In hell, Crowley was fuming. Another disgraceful loss against God was in the books.
He sat upon his throne gnashing his teeth, plotting his next move. Something had to be enough that stupid Chuck could not counter it.
One of his underlings came and genuflected at his feet, looking troubled as he tried to tell Crowley why he was in the throne room unannounced.
Crowley grunted, "Spit it out."
The demon snarled, "Dean and Cas are wed, and Chuck made it official."
Crowley looked for something to throw in his rage. With this bond being recognized by practically every being in the universe, there wouldn't be much to break the bond, except if he killed one of them.
He looked down at the demon and commanded, "Follow them, and end them."
The demon nodded and left promptly.