Snowflake

As Ravel was intoxicated by their first kiss, Riser was in shock. His head was blank, and his body was freezing, unable to think what was happening.

Usually, this wouldn't happen as he has a lot of experience in this area.

Even if Magari attacked him when he was sleeping, he was still calm, yet this?

This was different.

Being kissed by Ravel made him unable to think or give a proper reaction.

He was just stunned still as her small, pink lips were taken over his lips.

It wasn't when she was about to put her tongue inside his mouth that his sanity quickly recovered, and he was frightened.

"Ravel!"

He slapped her cheek subconsciously and caused her to collide with the bookshelf near the wall.

His breathing was heavy as he thought about what they had done.

What did they have just done?

Did they just kiss?

However, when he saw Ravel, whose cheek turned swollen due to his slap, he panicked and quickly approached her hurriedly as he healed her.

"I... I...."

"It's okay, Onii-sama." Ravel hugged him gently. "Ravel is okay." There was no blame on her voice, only love.

"...."

He fell into silence as he didn't know what he had to do.

There was no doubt that he let his little sister kiss his lips, but this also made him disgusted with himself as he knew clearly that he let himself be swallowed by his weakness.

He let Ravel pamper him and used her love toward him.

He wasn't blind and could tell Ravel's feelings toward him, yet it was also due to this that he pretended that he didn't realize it.

Frankly, he knew he was selfish as he told her to bury her feelings with his indirect action, forcing her to play the role of a good little sister when the truth was she was in love with him.

However, with their relationship as a family, could this feeling be forgiven?

Yet, he knew with this incident, there was nothing that could be hidden anymore as he wanted someone to believe in him.

"You only need to believe in yourselves. Whatever you believe, Ravel will support you."

"...even if I will have to fight Sirzech Lucifer?"

Frankly, he knew how stupid he was.

He might become powerful, but was he comparable to Sirzech? No.

His Demonic Power might have increased by nine times, but even so, he just slightly matched the true Lucifer, the father of all the Devils.

While he could become even more powerful, he needed several conditions to reach the power to overcome the original Lucifer.

However, even if Sirzech was in a normal situation, his power was ten times stronger than the original Lucifer.

Facing such an abnormal individual and even fighting against it, in the eyes of others, Riser was abnormal.

Frankly, the most natural and normal thing was to make an ally and follow behind the back of Sirzech, letting him become the leader of all.

Yet, how could he do that?

Riser knew he was stupid, especially when he was still weak, yet—

"Even if you fight Sirzech Lucifer."

Ravel stared at Riser's eyes, and there was no lie. Every word that came from her mouth was the truth, something that came from her heart.

"Even if the others are telling you to give up, I won't do so. Even if others think you are wrong, I will support you. I will believe in you. Whatever you do, I will be the first person who is going to stand beside you, so..."

He could only be in a daze, watching him kissing his forehead with love before hugging him gently again.

"So, be like before, okay, Onii-sama? You don't need to be afraid of anything. Believe in yourselves like how Ravel believes in you. Be the cool older brother like you always do, and... and... I am sorry for kissing you before.

"This might be Ravel's selfishness, and the last time Ravel will do something like this, but after this... after this, Ravel will return to the good little sister like before."

She felt that that kiss was enough.

She was satisfied with it, and she was going to remember it forever.

There was no doubt that the kiss was going to become her most precious memory.

Nevertheless, even if she loved the taste of that kiss and had a feeling more than a mere sibling toward him, she didn't wish to trouble him as she only wished to stay by his side and support him.

Yet... yet... it was hard to hold back her tears.

"..."

Riser looked at his little sister, who tried to hold her tears. He felt that his heart was grasped and that it made him hard to breathe.

If she wasn't his little sister...

If she wasn't his family...

Then—

Yet, the relationship between them was doomed.

However, when the others told him to apologize to Sirzech and be like a good boy like before, she was the only one who supported him and told him to do what he believed.

Even when his wife, sister-in-law, and even his family didn't support him, Ravel was the only one.

Facing such a sincere feeling, it was impossible for him to remain indifferent.

The two hugged each other for a moment, and neither said anything until Ravel said, "Then, Ravel will leave first. Ravel will wait for Onii-sama."

Yet, when she was about to leave, he didn't let her go and hugged her.

"O-Onii-sama...?"

She was stunned and surprised, but before she was able to react, he kissed her lips.

Her eyes widened before she was in tears, and she hugged him tightly.

Unlike before, there was no hesitation in his eyes and heart.

He was sure that he wanted her.

While he knew that it was taboo, he still touched it.

Even if it was forbidden, he still dared to do it.

There was no way he was going to give her to anyone.

Their chaste, full-of-love kiss had begun to change into an obscene kiss.

Their tongues were locked against each other, sucking each other deeply as they hugged each other, hoping they could become one.

Yet, this wasn't enough for Ravel. 

However, he was afraid that they might be seen, so he used his wind manipulation to close the door and put her into his bed.

"Onii-sama..."

Her prim and lady-like appearance was no longer there.

Her demeanor was that of a woman and slightly disheveled due to their exchange.

Her eyes were staring at him, filled with misty and desire to give herself to him.

"It's okay..."

Her voice was full of shyness, yet her eagerness couldn't be hidden.

Facing such a request, he was a little helpless, yet he didn't deny it as he also wished for it.

"Ravel..."

"Onii-sama..."

As they looked at each other, he softly kissed her lips.

Their relationship was probably like snow crystals.

There was no doubt it was beautiful, but it was fragile and could melt away and disappear.

Nevertheless, they didn't have any regrets as from now on, they were no longer mere siblings but two pairs who loved each other.

"I love you, Onii-sama..."

Staring into her eyes, which filled with deep affection, the words that he kept deep inside his heart came out naturally.

"I love you, Ravel."

Only he was a bit hesitant to step further, but—

She pushed him down before she straddled his waist.

"I won't let you go, Onii-sama..."

Staring into his eyes obsessedly, she said those words seductively. 

"....." Riser. 

---

NOTE: 

To be honest, I have been hesitant and have been thinking about whether I should do it or not for a few days as I am not sure about this, but then again, I kept researching Riser and Ravel then found out that he is about the same age as Sona and Rias, so his age difference with Ravel is just two years who is also a high school student. He might not go to the school, but what's the point of going to the school with his current situation? 

Then, what about their blood relationship? First, he isn't the real Riser, and second, I will borrow Sora Kasugano's words, "As long as there is love, everything will be okay." Lastly, due to the "Devil Fruit," his genes would change. 

Nevertheless, this is inevitable, okay? This is the most natural development as she is the only one who supports him, and her love is the most sincere, but what do you think? 

However, I know that some or many of you might not be able to understand it, so depending on the situation, I might delete it and change it as it is troublesome if you try to be insistent, putting me the blame. After all, many times, logic can't work on people. 

Frankly, if I reject Ravel, I can see everyone scolding me, too, which is unreasonable. 

Let's settle this here.