Taehyung knew it was wrong.
Every sin his mind whispered, every fantasy he buried, every night he lay awake replaying the sound of her laugh—he knew it was forbidden.
But that didn’t stop it.
It only made it worse.
When his father married Ava’s mother two years ago, everyone said Taehyung and Ava would grow up like siblings—close, protective, inseparable.
They were right about one thing.
He was protective.
Obsessively so.
No one touched her. No one looked at her too long. No one made her smile except him.
But Ava… Ava didn’t know any of that.
Because Taehyung hid it well.
Too well.
On the outside he was the golden boy—quiet, intimidating, a little cold.
But inside?
She was the only thing he thought about.
The only thing that made him lose control.
The only forbidden line he dreamed of crossing.
His father’s warning echoed in his head all the time.
> “She’s your sister now, Tae. Treat her like one.”
If only they knew—
Taehyung never saw her like a sister.
He saw her.
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