Kakeru: Then do you want to kiss your sister Yuma, Miku-chan? A loving kiss to your beloved sister. What do you think Miku-chan?

Yuma: Huh? What are you planning!?

Yuma asked with a daze.

Miku: Miku... Miku is...

Miku struggled to say something. Her gaze was alternating between him and Yuma.

Kakeru: I see you can't decide for yourself. Then let me make it easier for you to decide.

Kakeru said.

Kakeru: You will start kissing passionately your sister Yuma here and now or you will kill her with your own hands here and now. Now make a choice, Miku-chan. You have five seconds.

Yuma: You bastard...!

Yuma glared at him, her veins could be seen on her forehead. She was struggling to move. To get her hands on the bastard before her, yet she couldn’t move even a step.

Seeing her struggling so much he just laughed.

Miku: Miku will do it! Miku will do it! So... Sniff…

Miku said abruptly.

Kakeru: That's good. That’s good. So, you really do love your sister, huh? Miku-chan?

Miku: Y-yes…. Sniff…

She said, tears flowing from her eyes.

Before she knew it, Miku was already walking towards her sister Yuma.

Yuma: M-Miku-chan. What are you doing? Stop! Miku-chan, please stop it.

Yuma begged her.

Miku: Miku loves Nee-san. So, she is really sorry.

Miku hugged Yuma tightly.

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Yuma: Miku-chan, please. Don't do this.

Yuma tried to push her away, but her limbs didn't listen to her. Miku got her face closer towards Yuma. She looked at her with trembling eyes. Then she closed them and slowly got her face even closer to her sister.

Yuma: Ummm....

Yuma's soft lips were sealed by Miku's own lips. Yuma felt her heart beat faster. Her body became hot. Miku was moaning slightly into her mouth.

Miku: Nee-san,, Miku feels so hot. Like she is burning up.

Yuma: Ahh, Miku-chan.... Umm... Please, get yourself together!

Yuma yelled between Miku's clumsy kisses.

Miku’s body continued it’s advances. The twins moaned louder. Yuma's whole body was trembling. Miku's lips moved more aggressively. Her tongue touched Yuma's lips.

Kakeru : Hahaha, what's with this.

Kakeru laughed, while watching them.

How stupid. Hahaha. Both of you look so stupid.

The girls moaned and kissed each other. Miku had no idea how long she was kissing her Nee-san already.

Yuma: Miku-chan, Miku. Please stop. This is wrong... Ummm...

Yuma squeezed out.

But Miku didn't listen. She licked Yuma's lips with her tongue feverishly. She was already forgetting herself. She wanted to taste her sister's saliva. Yuma tried to resist, but she couldn't.

Miku: Nee-san, Nee-san. Miku is really sorry. So… So… Nee-san can punish Miku later.

Miku whispered, but didn't stop. She was slowly abandoning herself to pleasure.

She invaded Yuma's lips with her tongue and started to lick the insides of Yuma's mouth and teeth. She wanted to taste her beloved sister Yuma's everything. She kept licking and licking until they were both smeared with saliva. They tasted each other endlessly. Yuma started to feel dizzy.

Kakeru was just looking at them with his vacant emotionless gaze.

Yuma: Miku-chan, Miku. You're making me dizzy. I can't take it anymore.

Miku: Nee-san, Nee-san, Miku starts to feel all weird. Miku's body is so hot and fuzzy. It can't stop trembling.

Yuma: Stop it! Miku, you must stop now!

Yuma yelled.

Miku: Miku is ..Miku is...

They kissed each other even harder. They pressed on each other's lips and sucked each other's tongues. They bit each other's lips with abandon. Both of them felt a metallic taste of blood in their mouths.

Yuma's body was shaking. Her legs were weak. Her body was on fire. Her head was spinning. Miku felt the same. She could hear her heart beating loudly. She felt like she was going to explode.

Miku: Something is... Something is... Going to...

Miku started to say, but then...

Kakeru: Okay, stop. Both of you. I'm bored of it already. Just separate now.

Kakeru said.

Immediately after hearing his command, both of the girls separated. They opened their eyes and looked at other, while gasping for breath heavily.

Yuma: You bastard! Yu piece of shit! I will definitely kill you!

Yuma glared and cursed at him with pure hostility.

Miku: Nee-san, Nee-san. Huff... Huff...

Miku was panting heavily. She was staring at Yuma feverishly.

Kakeru: I'm leaving now. You guys can have fun, by yourself. I'm going home. Oh right, you two. Let's see, meet me tomorrow after school.

Kakeru said indifferently and left them.

***