Title:The Boy is Mine.
Author: Heiwajima Shizuo.
Rating: T. Rating may go up.
Warning: Swearing, sexual innuendo, suggestive themes.
Summary: AU. And you thought an over-protective older brother was bad? Try an over-protective twin sister.

Chapter 2 - First Impressions.

A/N: Sorry for the ooc-ness and mistakes. I just like the thought of experienced!Shizuo/shy!Izaya ;A;

—-

"Why, I'd ought'a rip his head off!" Kanra snarled angrily at the show across the street. Who was that blonde guy, and what was he doing with her brother? Why was he touching him so casually, and kissing him like that? "Let me at him!"

She stood up from the bench she had been seated on, her fingers clenching into tight fists before unclenching, her fingers cracking sharply. Just as she made a move to saunter over, and beat the life out of the blonde who continued to touch and kiss her brother, she was roughly pulled back into her seat. Her rear connected with the metal surface of the bench roughly, and she groaned in a mixture of pain and growing frustration. The raven whipped her head to the side, releasing a booming 'What?' at the teen next to her. Her maroon eyes flared.

"Easy there. Just… calm down, okay? You're scaring me, Kanra-chan!" The small blonde quivered, frightened at his friend. Kanra's face softened automatically and she furrowed her brows.

"I'm sorry, Linda-chan. It's just…" Something caught her attention in her peripheral, and she turned back to look at her brother and the abnormally tall blonde he stood outside Russian Sushi with. "Hey—Hey! Did you just see that? Did he push Izaya against the wall? WHAT IS HE DOING—"

"Kanra-chan, in and out; deep breaths!" He tried to soothe her to the best of his ability. She did as she was told, and exhaled deeply before inhaling audibly. Linda sighed in exasperation. When school had ended, he went straight home, and fell asleep on his living room couch. He was beat. The previous night, he had played a gig at a local café where the money he earned went towards the trip he intended to go on, mainly because Kida was going, as well as Kanra.

That afternoon, he had fallen asleep in his living room. Not long after this, his cellphone began to ring. At first he ignored it. But when the ringing did not stop, he gave up and answered. Kanra's voice came in, and, well, to make a long story short—She ended up persuading him into watching her brother from across the street, hang out with someone he was rumored to be dating.

To save himself from his friend's wrath, Linda decided to leave that last part to himself. Although, he was surprised she had not noticed or heard anything from the other students at Raira. Izaya and Shizuo were the talk of the school—Two of the most attractive guys at school, having a thing? The word spread itself like wildfire. He shook his head. But, knowing Izaya, the raven probably did his best to hide it from Kanra. Why? Now, he wasn't too sure about that.

"Are you calmed down now?" He asked.

Kanra nodded.

"Can I leave now?"

"No!"

"Why?" Linda whined. "I feel bad for spying on Iza-chan!"

"We're not spying!"

Linda raised a skeptical, blonde brow.

"I'd like to call it, 'making sure he doesn't get hurt.'"

"Well, with Mr. Muscle-Football-Player there, I'm sure he'll be just fine. He took down, like, an entire football team by himself last month and wasn't hurt at all! Now, can I go—?"

"Linda-chan! Linda-chan, they're leaving! C'mon, we can't lose sight of them!" Kanra yelled, running after them, arms linked with the weeping blonde's. All he wanted to do was sleep and have a good rest. Was that so much to ask for?

—-

"Want something to drink?"

"Hmm?"

"I'm going to get something to drink at that vending machine across the street, want anything?" Shizuo got up from his spot on at the edge of the fountain. He motioned to said vending machine with his thumb, shooting Izaya a charming smile. "It's on me."

Izaya nodded in a nervous, robotic manner.

"Anything particular, or is whatever fine?"

"Doesn't matter."

"'K, be back in a few." Izaya watched as the other jogged across the street, past the vast amounts of people that populated Ikebukuro. He stared at Shizuo's back for a moment, before turning away to look down at his phone.

It was 4:57 PM. He had been out with Shizuo for a little over half an hour, and felt a little bad for abandoning his sister. They had always spent evenings together, or with their friends. But, where he went, she went and where she went, he went. Because they were like one mind, separated into two bodies, no one ever seemed to mind when one brought the other along. It was like having one person instead of two people.

He sighed. He should really text her. Knowing Kanra, she was probably at home, worrying over him.

Hey, I'm fine. I know you're worried, but I'll be home later.

Izaya waited for a minute or two, a confused expression washing over his face when there was yet to be a reply. Kanra had given Izaya a special ringtone. That way, she would always know who was trying to contact her, and could always text or call him back right away. She even broke her phone once because she tried to text him in the shower one morning.

He stared at the screen of his phone, willing a text to appear.

That's good! Don't come back too late, okay?

Izaya sighed in relief and texted back a 'got it!' before slipping his phone into his back pocket of his jeans. His eyes fell to the ground before him. He saw a large shadow stalking towards him, and turned his head in its direction. He was greeted with a warm smile. "Hey, I'm back. Here."

Shizuo handed him a can of Coca Cola. The red can was incredulously cold, and the raven fumbled with it for a moment. He thanked Shizuo, and then opened it. Izaya took a long sip. "Oh, and by the way, I met your sister."

Izaya spat out his drink immediately.

—-

"Linda-chan, did you see where they went?" Kanra looked to her left and then quickly to her right, scanning the area for a familiar head of dark hair.

"They're over there." Linda said from behind her, pointing to the duo sitting on the edge of a fountain across the street. The girl whipped her head around at break-neck speed, and her big, reddish eyes landed on her brother's slouched figure instantly.

"Can I go home now?" Linda whined as he bought can of lemonade from the vending machine next to them. "I'm so tired! I'll come spy with you tomorrow instead, okay?"

"We aren't spying—We're making sure he doesn't get hurt!" She stated as if it was a fact. After all, what was a devoted sister like her to do? Let her brother spend time with someone, who by the looks of it, wanted nothing more than to touch her brother in places even his hands have never traveled before? Just the memory of seeing the blonde's eyes stare at Izaya's butt like he was a starving animal looking at a piece of fresh meat…

"Kanra-chaaaan, can I go home now, please?"

"Stop your whining—We're doing Izaya a favor."

"What's following him around on his date a favor—"

"What did you just say?" She snarled.

At this point, Linda was much too tired to notice the fire that began to burn wildly in her eyes, and the dark aura emitting from her petit body. Her small hands were in tight fists that trembled, and her teeth were bared as she growled like an angered lioness. Unaffected, but mainly because he was so unaware, Linda yawned and said, "I think they're on a date. Then again, it's probably just me… Hey, look, he's coming over here."

Taking a sip of his lemonade as he lazily pointed at the tall, blonde figure making his way over, Kanra averted her fiery gaze. She took a deep breath. Kanra heard her phone ring from within her bag, and dug through it instantly. She pulled it out and felt her temper drop substantially. It was a text from Izaya.

Hey, I'm fine. I know you're worried, but I'll be home later.

That's good! Don't come back too late, okay?

She quickly texted back and quickly stuffed her white iPhone back into her bag. She heard her phone ring once more but ignored it. It was probably Izaya saying 'got it!' or 'will do!' or something.

When she looked up, she caught sight of the blonde from earlier, and her temper began to rise once more. With difficulty, she pushed back the urge to hit him, and smiled sweetly at him. They locked eyes and he smiled back. Kanra batted her long, thick lashes. "Uh, hi." He gave a small salute.

"Why, hello." She greeted him in return in a sweet tone, and eyed him critically as he put in a few coins into the vending machine next to her, and bought two drinks. A red can was held in one hand, as the other held a small, square carton of milk. He shot her a smile that would have had any girl swooning. However, Kanra was not just 'any girl' and she suppressed the sudden urge to gag.

Did he honestly think that little smile of his would work on her? Who did he take her for? But, being raised very, very well, she smiled back at him. She watched him place the carton of milk into the same hand as the can of Coke, and reached his free hand out to her for a handshake.

"Hi, you must be Izaya's sister." He said, his voice deep but friendly. "I've seen you around school, and you guys really look alike. I'm Heiwajima Shizuo. It's nice to meet—"

"Save it." She cut him off. Her smile had dropped, leaving her face scowling, and her warm tone turning icy. Shizuo's smile faltered as he stared with a confused look.

He blinked. Huh?

"E-Excuse me?"

"You heard me. Anyway, I best leave." She turned on her heel, leaving Shizuo to blink once more.

Wait, what had just happened? All he did was introduce himself to his soon-to-be-boyfriend's sister. He figured if his sister liked him, Izaya would like him even more. It was a little tip his best friend and mentor Tom had given him right before he went to meet Izaya. Shizuo wasn't all too chatty around people he was not familiar with, but he had a natural charm and knack for good impressions.

So when he was presented with such an unwelcoming attitude, it came as a complete shock. "U-Uh… Okay then. We'll, it was nice meeting you." He said, waving after her.

I guess?, he thought to himself.

In the corner of his eyes, there was a small blonde teen standing, drinking a can of lemonade, looking so tired, he might have passed out.

"I don't even know, sir." Said the small boy.

"Neither do I." He said before awkwardly walking away.

—-

Sorry about my sister.

It's fine. I probably wouldn't like anyone dating my brother. Anyway, I'm off to bed. 'Night, flea.

Flea? What a cute pet name. Well, goodnight to you too, protozoan.

Shizuo sent his text, and dropped his phone onto the bed next to him. Izaya was a completely different person via text. Then again, he was pretty sure everyone was different via text as well. As he laid there with his arms out-stretched at his sides, he stared blankly at the ceiling above him. He squinted his eyes at his obnoxiously bright lights, and focused on the strange contours of the ceiling.

He had just come back from his more-or-less 'date' with Izaya. Being the gentleman he was, he walked him home. It was something he saw happen in movies a lot, and he thought he'd give it a try. Even though it had rained the previous night, it was almost the time of the year where snow began to fall over Ikebukuro, and when night came earlier than it usually did. So, by the time it had turned 6:00 PM, it was already dark out. The protective side of him just couldn't let Izaya walk back by himself, even though he seemed more than capable of handling anything that came his way.

He noticed the flick blade Izaya brought with him everywhere, and his incredible agility from their little Track 'N Field day in their sophomore year. The blonde sat up to strip himself of his white school shirt, and changed into a comfortable pair of black sweats. There were white strings that he pulled on a little and tied to keep them from falling. Shizuo gave a soft tug, and his shoulders slumped. In those movies, where the guy always walked the girl home, it always ended with a kiss. Always, always, always.

So, he thought to himself, Why didn't we kiss?

There was a knock on his bedroom door. He had finished tying and adjusting the waistband of his sweats, and looked over his shoulders. For a split second, he glanced over to his dress, and then shrugged. He was too lazy to put on a shirt. "Come in."

The door opened, and in came Tom in a t-shirt and shorts. The older male smiled, and leaned against the door frame, arms crossed.

Tom Tanaka was a close friend of Shizuo who also doubled as an older brother. While Shizuo stood as a high school junior, Tom stood as a high school senior, full of potential. "So, how was your day?" He asked knowingly.

"Good." Shizuo dropped to his bed, lying on his stomach.

"Huh? That's it?"

Shizuo rolled onto his back, and rubbed his cheek awkwardly as he recalled his first encounter with Izaya's sister. "W-Well… You see…" He explained to Tom all that had happened between him and Kanra, and how bad it had been. Tom whistled, brows raised.

"Yikes."

"Yeah, she didn't seem too happy." Shizuo said with a shrug, and then rolled under the dark covers of his comfy bed. "I didn't even do anything wrong. Wait, did I?"

"By the sounds of it, no. She's probably just being over protective." Tom said. Shizuo nodded. Tom did always know best. The man was wise and a very rational, long-term thinker—Something Shizuo never was, even if he tried. It was something he learned years ago, when they first met in middle school. "You'll win her and her blessing over in no time." He offered encouragingly.

Shizuo grinned. "I'll try? Haha."

"That's the spirit." Tom leaned his head side to side, cracking his neck loudly. Shizuo winced instinctively. The sound of people cracking their bodies—It was something he wasn't all too fond of. "Well, I'm beat. I'm going to go sleep now. Goodnight, Shizuo-kun."

"'Night, Tom-san." Snuggling into his covers, he watched Tom turn of his light switch for him, and close the door. Shizuo's already heavy eyes began to drift close slowly as thoughts of how to win over Kanra filled his sleepy head. If he could get her to like him, he was sure it would please Izaya. And pleasing Izaya would mean he'd be a shoo-in for his heart.