Disclaimer: I don't own Durarara.
It was impossible! He just could not believe it. The cherry blossoms were falling around them as his youngest sister stepped to that thing and kissed it. SHE JUST FUCKING KISSED IT!
Izaya felt as his hand squeezed the wall. If that confession about letting her desk being bullied was not enough for Kururi to hate it, she did the polar opposite just because she was being called cute?! And he thought that she was the more intelligent… Mairu kissing it was not a surprise. They did everything together – even kissing.
As they started walking away the thing reached out and touched Kururi's hand. Izaya's hand grabbed his switchblade in his pocket. Kururi turned around, looking surprised because of the sudden action.
"K-kururi, wait a sec!" IT FIRST-NAMED HER! "Making up that I did not do anything to prevent them bullying your desk… would you be so kind and escort me through Ikebukuro?"
The world became fuzzy in front of Izaya. IT ASKED HIS SISTER OUT ON A DATE! And the worst thing was that she said yes. Izaya turned around and sprinted towards the station.
Izaya was standing behind a lamp post, staring daggers into his worst enemy as he was standing in front of the station. Suddenly, he spotted out his sister. She was wearing her yellow skirt and khaki hoodie. The blush appearing on the others' face made him want to break his neck.
"You look really cute!" Aoba – he looked up the kid's every data last night – said, rubbing the back of his head. He pulled out his hand behind his back and reached the flower that he had in it towards Kururi.
His sister blushed as well while accepting it. Izaya had never seen that side of her. She was always so quiet and the thought that it was not him who made her react like that was really painful.
"Thank you, Aoba-kun!" She said, smiling at him. If it was even possible, the brat's face became redder. Izaya had more than a thousand scenarios of how he would make it having that color – but not because of embarrassment.
As soon as he felt that well-known presence behind his back, he lifted up one of his fingers. His mission was more important in that scene than his everyday activity, thought it would be a good method of getting rid of some stress.
"I do not have time to play with you right now," he hissed backwards, but did not take his eyes off of the lovey-dovey couple in front of him. One glance away and the brat would have disappeared with his sister. He did not let that happen!
"What is more important to you than ruining someones' life, I-ZA-" Izaya grabbed his collar, pulling him down. When he spotted out what Izaya was watching, his eyebrows furrowed. "What does Kururi do with that kid?"
"Isn't that obvious, stupid Shizu-chan? He tries to do bad things with my sister!" Izaya mumbled quietly, knowing that there was more desperation in his voice than he wanted there to be. As he felt the body shaking because of laugher behind him, he turned around angrily.
"They are only on a date, Izaya. It is not a bad thing." Shizuo almost patted the other's shoulder to calm him down. Seeing his enemy in a state like that was funny and strange at the same time. He would have never imagined that Izaya had a so protective face as well.
Izaya only turned back, but the sight that awaited him made his heart froze with fear. Kururi and that little piece of shit were nowhere to be found!
He spotted them out only 15 minutes later as they were buying ice-cream before Ikebukuro Park. Shizu-chan's hand somehow stayed in his, but he did not worry about that in that situation. He pulled him behind a tree from where they could hear and see the two younger kids who were sitting on a bench.
"I am really glad that you decided to come," Aoba said, looking at Kururi. Kururi turned her head towards him with a little smile appearing on her face. Taking it as her own 'You are welcome!' Aoba smiled back, but his cheeks soon became red again. As Kururi licked her ice-cream with her tongue slightly out, he had to look aside asap.
"Put that fucking blade back to your pocket, idiot!" Shizuo growled to Izaya, grabbing his wrist. No matter how hard he tried, Izaya was not capable of pulling it out from the iron grip. He almost asked about how Shizu-chan felt during his own little brother's first date, but he knew that it easily would mean their hideout being seen because of his company's rampage.
The sun was setting as the two kids stood in front of each other in the entrance of the station. Kururi had numerous presents in her arms being won by Aoba from that claw machine.
"Thank you so much for today, Kururi," Aoba said, a grateful smile appearing on his face. "It was fun."
"Yes… I enjoyed myself too," Kururi said with a dark blush on her face. She stared down at her presents in her arms. Aoba stepped to her, lifting her chin up gently.
As their lips met in another kiss, Izaya squeezed that stupid plushy cat he got – he had no idea how and why – from Shizu-chan as an award from the same claw machine, so hard that he was afraid it would be torn.
"Hey, where are you going?" Shizu-chan called out for him as Izaya turned around and started walking towards the other direction. Shizuo caught up to him, then looked down at his face. "Don't tell me… are you jealous of that Aoba kid?" Shizuo had to bite into his own lips to hide his laugher that almost bubbled up from his chest.
"I am not!" Izaya said, snapping his head up. He glared angrily at his nemesis, but it disappeared soon and he hung his head down. "It seems like Kururi does not need me anymore…"
Shizuo rolled his eyes and patted Izaya on his head, ruffling his hair. That Flea could be so childish sometimes…
"There is free fatty tuna in Russia Sushi today. Wanna come?"