Obsession

Oikawa Tooru was always a posessive person in nature . He never liked to share what was his. Ok . Maybe he wasn't that bad . But when it comes to Tobio , He would never compromise . The blue eyed boy was only his and his alone . Anyone who would dare to take the ravenette away from Tooru will suffer just like this man .

" Leave me . Please let me go . "

Tooru narrowed his eyes at the shivering guy .

" Give me a good reason why I should . You hit on my Tobio and when he rejected your advances  , you dared to force yourself on him . How dare you touch my Tobio with this filthy hands of yours . " , Tooru said gripping the man's already broken arm as the guy cried out in pain .

" Please have mercy on me.  I swear I would never even look at your fiancee again . Let me go please. Have mercy ." , the man behged .

" How about no ? " , Oikawa said stabbing the man .

" Anyone who touches my Tobio dies . He is only mine . I'm the only one who can touch him . You got that . "

Oikawa continued to stab the man . He stopped after he realized the  man has finally died . Oikawa took heavy breaths and calmed down a bit .

He touched his face and made a disgusted noise at the filthy blood of the man that has sputtered on his face .

Getting up he prepared to hide the body and cleaned up his mouth and face .

After he was done , he got into his car and started driving towards his shared apartment with his beloved fiancee .

Within 20 minutes he reached into their shared luxury apartment. He waited a bit after ringing the bell .

He felt himself smile as he heard the sound of feets rushing towards the door. The door opened and he was greeted with the sight of his beautiful fiancee wearing simple black t shirt and jeans and an appron over it .

The sight was so incredibly domestic and Oikawa knew that's what he wanted always.

" Welcome back Oikawa-San. " , Tobio said with a small smile as his blue eyes sparkled seeing the older boy .

" I'm back " , he said fondly looking at his fiancee .

" You must be tired . Why don't you go take a shower ? I'm almost done with dinner. "

" Sure ." Oikawa said putting off his shoes and heading towards their bathroom . He grabbed a fresh set of clothes before entering bathroom. He put off his clothes from work and got under the shower. He smiled as he thought about how it all started.

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Flashback 

Tooru was 5 years old when a new family came to live in their neighborhood. An elderly couple and their grandchildren. Apparently their son and daughter-in-law stayed out of the country most of the time as they were both well known researchers . 

He got along with the younger boy that was 2 years his junior. The boy was cute ,polite and shy and just so pure . Tooru was absolutely smitten with the kid named Tobio .

They were attached to the hips . Tooru would always cling to Tobio . Their families found this sweet .

When they got into middle school, they started dating. It was obvious to their families that they'll get together sooner or later . Everything was good untill Tobio got into high school and girls and boys flocked to him like ants to sweets . Tooru would get jealous . At first he would let those low lifes go with just a threat and warning but one day one of those older boys tried to force himself on Tobio .

That's when Tooru lost it . To say He was  furious would be an understatement.  That's when Tooru killed for the first time .

Did he regret ? Not at all . Will he do this again for Tobio ? Absolutely.

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Back to present

Tooru sighed and looked at Tobio who was sound asleep probably exhausted after their long love making session . He caressed the ravenette's head fondly before pulling the younger boy close to him . Tobio snuggled to him in his sleep .

Tooru loved this boy and he would kill and die for him without a second thought.

Some might say he's obsessed. So be it . As long as he had Tobio in his arms , no one Mattered. Just the two of them .