Kyousuke's heart slammed against his ribcage, over and over in a perpetual motion. The thundering roar of surging blood filled his ears, drowning out all sound. He could see Rin's lips move as she looked at him, eyebrows raising. How could she appear so casual about this?
It was going to change everything between them. He kept staring into those round, red eyes of hers, swallowing and struggling to moisten his rapidly drying mouth. This was his own little sister standing before him, watching him and waiting for him to finally make the move.
Kyousuke parted his lips, drawing in a long breath.
There was still time.
They could turn back from this and pretend none of this happened, that neither of them had said the words that led to this, they could bury their feelings and go forth to a safer future where there was no risk.
And yet, the part of him wanted this was overpowering him, defying all common sense and driving him to place his hands on either side of her face. Rin gave a slight jolt at the touch of his warm flesh on her cheeks. Kyousuke exhaled and closed his eyes before he took the plunge.
Rin's lips were soft to the touch.
His little sister's lips. He was actually touching them with his own. The very thought almost made him pull away but he stopped himself from doing so. There was no turning back from this now.
It had begun.
After a few seconds, Kyousuke pulled back and looked intently at Rin's face, studying her features. Her lips were parted slightly and her eyes half closed. A rosy hue bloomed in her cheeks.
"That felt nice." Rin brought a finger to her lips.
"It did," Kyousuke felt a brief flash of shame. Was he wrong for doing this to his own little sister, for daring to enjoy forbidden contact with her body? He quickly buried the thought. "So... shall I do it again?"
Rin nodded, her smile growing wider. "Yeah."
Kyousuke went in for another, savouring the kiss for what felt like a long, long time.
This was their future now. A future filled with risk and the possibility of pain. Who knew what hardships lay in store for them?
But he wasn't going to worry about that.
They were going to enjoy what they had now.