Kasuka Heiwajima had always love his dearest and most precious older sibling Shizuo despite his older brother's lack of control he had always admired him though he never expresses it he knows that his brother knows it or at least feels it despite his lack of showing emotions. At a young age Kasuka was always doted not only by his parents but Shizuo as well

If someone bullies Kasuka his beloved older brother would be there to defend him that is why despite his brother's hatred for his self Kasuka loves him so much that led to Kasuka questioning whether his deep love for his brother is still that of a sibling.

That happened when Kasuka noticed that his brother who was always eager to go home had started to frequently stop by the bakery en route to their home. At first he paid no attention to it but when he started to observe on how his older brother seemed to start talking more with the lady who owns the shop he somehow felt a tinge of jealousy , but he simply dismissed that feeling as heart burn. As it become more frequent Kasuka had now realized his beloved brother had an infatuation towards the shop lady.

On the way home they stop by the park per Kasuka's request which Shizuo granted not minding that it was soon going to be dark

Kasuka was the first one who initiated a talk

"Nii-san do you like the friendly oneesan?" Kasuka bluntly inquired

"K-Kasuka! Even if I like Akane-oneesan I only like her as an older sister" Shizuo answered with a blush that covered his entire face

"Nii-san I never mentioned Akane-oneesan" Kasuka stated

Shizuo realizing this had blush a darker shade of red

It hurt to see that his beloved older brother already has someone he likes because the thought of his brother leaving him behind and no longer there for him was too saddening. Shizuo seeing his little brother's expression immediately worried

"Kasuka? Are you alright?" Shizuo asked frowning with concern

Kasuka felt tears pooling at the end of his eyes

If being with someone else is brother's happiness then I'll have to be a good little brother and support it…I love brother…

"Kasuka I'm sorry did I frighten you?"

Hearing these words out from his brother's mouth had snapped Kasuka back to reality. Because he knew how much his brother hated his abdominal strength therefore he had immediately and frantically denied this all the while saying "I love brother and brother loves me too" along with other reason Shizuo could no longer process because all he saw at that time was his little brother who always remained stoic was showing a lot of expressions and Shizuo was the only one there to see on how cute Kasuka was when he is frantically worried

Shizuo wondered 'Is it normal for your heart to beat faster for your most precious little sibling?"

Kasuka knew it was wrong to felt happy that someone got hurt but he couldn't help his self

For the first time in his life Kasuka Heiwajima wondered 'Is this right?'

They were going home that afternoon Kasuka noticed that his brother seemed to be in a hurry to get home or rather nowadays to see Akane-oneesan but the moment they had reached the bakery Kasuka didn't know whether at that time he was glad or sad of that day's events

Shizuo had stop dead in his tracks upon seeing the commotion within the bakery. Akane-oneesan was surrounded by a group of men while other men destroyed the bakery goods. Overcome by anger Shizuo quickly had left his brother and went inside to stop the fight and protect who he held dear.

Kasuka at that time just watch at the sidelines afraid and in pain because at that moment Kasuka knew and confirmed for his self that his beloved big brother would definitely leave him and probably stop protecting him if he found someone to spend his life with till the end. Kasuka saw how much Shizuo had used his strength that he hated with all his heart, he became afraid that maybe he would no longer be with Shizuo and that maybe his older brother would be in pain once again and he again can do little about it.

The aftermath was even harder to dealt with because the next thing that he knew they were at the park and that his brother had ask the most dreaded question

"Am I a monster?" Shizuo asked with his head down and tears flowing out of his eyes

Looking back may be that was where this very wish started. The only wish that Kasuka wants was to be for his brother always just like what he does.

'No! please don't call yourself a monster nii-san, you're not a monster' that was what Kasuka wished he could have said but the only thing that came out from his mouth was a stuttering no coupled with a few sobs as he ran and hugged his most beloved nii-san.

That day was when the first sign of his incestuous love for his nii-san was shown because when Kasuka had calmed down the sight that greeted his was his beloved nii-san's soothing smile. He slowly leaned and place a kiss on Shizuo's lips and when he pulled back his face was in a deep red

Nii-san…

"I love you…nii-san" Kasuka slowly said with his head down and a shaking body full of worry and fear for what may happen next.

Shizuo stared at his younger brother his mind not yet fully processing what had just occurred and when it did he broke into a smile and into a refreshing laughter making Kasuka looked up towards his brother and was awestruck because at that moment his brother seemed to be the most beautiful person he had seen.

Shizuo slowly stood up from crouching and patted Kasuka's head the moment he had stop laughing though there was still a grin on his face

Kasuka tilted his head in confusion cutely that made Shizuo grin more as he ruffled his brother's head

"nii-san?"

"I love you too Kasuka" Shizuo said with an amused grin since Kasuka his ever stoic brother was now blushing cutely with a small smile etched on his face. And with that Shizuo leaned and returned the kiss.

If Kasuka were to look back on that day he was sure that the kiss from that day was the beginning of this forbidden love for his brother and that day was his most precious and treasured day and probably that was where his wish started

Please make me be the one who'll comfort him

A/N: this is a durarara kink meme fill :

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