Izaya could tell the change in the young Earl's mood immediately. And poor Sebastian suffered for it.
"What did you do?"
Izaya stood in front of his older brother scowling.
"Nothing!"
Sebastian waved his hands in front of him desperate to prove himself innocent. Izaya continued to glare at him for a while before letting out a sigh.
"I'm not angry Seb, I just wanna know."
Izaya's voice took an uncharacteristic tone full of care. Of course, his brother knew better than to believe it.
"It wasn't me!"
He cried while cowering from the shorter, younger demon.
"Sebargh!"
Izaya slapped his hands over his mouth at the snarl he had just let out, a bright blush covering his cheeks. Izaya had actually snarled at his brother, how unsightly. Sebastian on the other hand was grinning like a child on Christmas.
"Iza!"
Izaya glared before swiftly turning around and stalking out of the hallway and into Ciel's office Sebastian hot on his trail.
"Iza you growled!"
Izaya's face burned brighter,
"I did no such thing!"
The group inside turned to the pair at their rather strident entrance. The grin on Sebastian's face paired with the bright blush on Izaya's face left the three guests dumbfounded. Ciel however only grew more insecure. He would never show it but he did at times crave for that... familial... love and attention. Ciel jolted at the thought a bright blush covered his own face now and he buried his face in his arms using his desk to support him. What would it be like to have Izaya as a big brother. To read him, carry him and make him food, just like he was doing now. If Izaya was his brother, would he always have that? Of course Sebastian did all of that already, but there's a difference, Sebastian was his butler, and Izaya was Izaya. A light cough brought him back from his thoughts as he raised his head to look at the people who had entered his space. Shinra was the first to ask a stupid question,
"Sorry kiddo but can we speak to one of your parents? I think they'll wanna know we're in their house."
It was as simple as a single sentence. Ciel's expression immediately turned cold.
"You are not in their house you are in mine. I am the earl of phantomhive."
A small smirk suddenly branded the doll-like boys face as he leaned back, crossing his legs as he looked down at those clearly below him. The beautiful sight elicited a hidden perverted joy from Sebastian. A joy all demons tried their best to keep constricted as it was seen as unrefined to act on in. Yes. This was his master, what made his soul so tempting for the demon, it was a soul full of pride. Izaya sensed pit immediately. He himself was a demon of gluttony, he preferred the souls desperate and hungry. Like Mikado's hunger for the supernatural and the desire to be a part of it, or the blinded desire of Saki's love for Masaomi. Even so, he would never show it like Sebastian, especially not in front of Ciel.
"Control yourself Sebastian."
Frowning Sebastian obliged. Izaya silently brought his hand up to his nose and took a whiff of the air around the young earl, jealousy?
Izaya watched as the small boy spoke to the three invaders in confusion. What in hell happened?

YOU ARE READING
Brother
FanfictionI love the thought of Izaya and Sebastian being siblings so I wrote this. As always I'm open to constructive criticism.