Breakfast was already in progress when Dean finally made himself go.
The dining room of the northern wing was bright with morning light and quiet in the particular way only palaces ever were, with soft steps, murmured voices, and the careful clink of porcelain. It should have been comforting. It wasn't.
Sebastian was already there.
He sat at the long table with a cup of coffee he clearly hadn't touched in several minutes, posture rigid in the way that meant he was holding himself back from doing something deeply undiplomatic. His black hair was tied loosely at the nape of his neck, green eyes fixed on nothing in particular.
Dean stopped just inside the doorway.
They looked at each other.
There was no need for questions.
Dean knew.
Sebastian knew that he knew.
And neither of them pretended otherwise.
Dean crossed the room and dropped into the chair opposite him, reaching automatically for a slice of bread he had no intention of eating. His fingers tightened around it, then relaxed.
"So," Dean said lightly, because if he didn't keep it light, he might start shaking. "You met him."
Sebastian's mouth curved in something that wasn't a smile. "Briefly."
Dean exhaled through his nose. "You shouldn't have."
Sebastian finally looked at him properly. "I absolutely should have."
Dean's jaw tightened. "I can't stop you, can I?"
"No," Sebastian agreed. "You can't."
Silence stretched between them, thick with everything neither of them wanted to say in front of servants, guards, and the very real possibility of being overheard by the wrong people.
"He crossed a line," Sebastian continued quietly. "Before it even had time to settle into sand."
Dean stared at his untouched plate. "I know."
Sebastian leaned back in his chair and lifted a hand slightly. The palace servers paused, read the room, and withdrew discreetly. Doors closed softly. The long dining room became quiet in the way only places of power ever truly were: no witnesses, no illusions of privacy, but enough space to speak honestly.
"You can change your mind, Dean," Sebastian said. His voice was calm, but there was steel under it. "Just say the word, and our fathers will make it real. They will burn through protocol, alliances, and polite fiction if they have to." He hesitated only a fraction. "In the worst case… we involve Dax."
That was not a threat. That was a nuclear option.
Dean's fingers tightened around the edge of his plate. "And turn this into an international incident."
Sebastian's green eyes didn't waver. "Into an international correction."
Silence stretched between them, one that existed when both people were thinking along the same line and deciding how far they were willing to take it.
Dean let out a slow breath. "He didn't hurt me," he said quietly. "But he is an arrogant man." A faint, humorless curve touched his mouth. "One of the most powerful men in the world, politically and physically. Arrogance comes with the title. I can understand that much."
Sebastian studied him. "Understanding it doesn't mean you have to accept it."
"I don't," Dean replied immediately. His gaze lifted, his purple eyes filled with determination. "That's the problem. He assumed certainty where there was only choice. And he spoke like the outcome was already decided."
Sebastian raised a weary, amused brow. "And you don't intend to let that stand."
"No," Dean said calmly. "I won't let this pass."
Sebastian let out a short laugh, the kind that came from equal parts exhaustion and very real appreciation.
"Oh, I know," he said, shaking his head slightly. "You have that look."
Dean frowned. "What look?"
"The one that makes entire departments start rewriting contingency plans," Sebastian replied dryly. "The one that made Windstone once lock down an entire wing of the palace because you 'had an idea.'"
Dean winced. "That was one time."
"It was a memorable time," Sebastian said. "And the only time I've seen Windstone genuinely speechless. Which, by the way, is terrifying."
He studied his younger brother for a moment, green eyes softening despite the humor. Dean didn't look panicked. He didn't look overwhelmed. He looked… focused. Calm in that dangerous way that meant he had already begun constructing something in his mind.
"You don't explode," Sebastian went on quietly. "You don't lash out. You don't run. You reorganize the board."
Dean's lips curved in a troubling smile. "Technically I run away from him."
Sebastian snorted. "Strategic withdrawal," he corrected. "Very different thing."
Dean's smile didn't fade. If anything, it became dangerously sly. "Temporary. I prefer my counterattacks well-timed."
Sebastian watched him for a long second, then sighed, half fond, half resigned. "Of course you do. You get that from Father. And the patience from Papa. Which is a horrifying combination in one person."
Dean glanced down at his untouched breakfast. "He crossed a line, Seb."
"I know."
Dean finally set the bread down. "He spoke like my answer was a formality. Like my consent was paperwork already filed."
Sebastian's jaw tightened. "Dominant confidence. The kind that's never been challenged in a way that mattered."
Dean's gaze flicked up, steady and unblinking. "Then it's about to be."
A pause settled between them.
"You're not going to withdraw the engagement," Sebastian said.
"No."
"You're not going to soften it, either."
Dean shook his head once. "I made the choice. I won't undo it just because he assumed too much. But I also won't let him believe that choice means surrender."
Sebastian's mouth curved, slow and dangerous. "So what are you going to do?"
Dean's tone was mild and innocent to anyone not knowing him well. "I'm going to let him learn the difference between inevitability and consent."
Sebastian leaned back, crossing his arms. "That sounds ominous."
"It's educational," Dean replied. "For both of us."
For a moment, Sebastian simply looked at him. Then he sighed, a sound that held equal parts pride and dread. "You realize that when you decide to 'educate' someone, entire governments start paying attention."
Dean's smile turned almost sweet. "Good. He wanted to be certain. Let's see how he handles uncertainty."
Sebastian reached for his coffee at last, finally taking a sip. "You're going to make him work for every inch, aren't you?"
Dean met his eyes. "He already decided I was his. Now he can learn what it takes to be chosen."