Pairing: Hamster hybrid!Heeseung × fem!reader
Genre: fluff, cozy romance, hybrid instincts, slow-burn feelings, domestic softness, roommate.
Synopsis: Four months into living with Heeseung, she learns that hamster hybrids don’t just collect things—they collect comfort, warmth, and eventually, her. What starts as a chaotic nesting habit slowly turns into something softer, quieter, and far more intimate than either of them is willing to name out loud.
The apartment never stays the same for long.
At first, she thought the missing items were accidents. A misplaced blanket. A hoodie that got lost in laundry. A plushie that somehow migrated rooms on its own.
Then she learned the truth.
Heeseung was very committed to it.
She finds him in the middle of it again.
His room is no longer a room.
A soft, sprawling mess of blankets layered like clouds, pillows stacked too carefully to be accidental, plushies arranged in what she is convinced are emotional support positions.
“So,” she says slowly, leaning against the doorway, “you’ve kidnapped my entire emotional support system.”
“…They were cold,” he says.
She sighs, but she’s smiling already.
8 months ago, she would’ve panicked about this.
8months ago, she didn’t know what it meant to live with a hybrid whose instincts didn’t quite understand ownership the same way humans did.
Now she just steps inside the nest.
It swallows her immediately.
Heeseung shifts immediately, like her presence triggers something instinctive in him. A blanket is tugged over her shoulders before she even sits.
“You’re always prepared,” she mutters.
The way they talk like this now.
She settles into the pile of blankets, sinking in until she’s basically part of it.
Heeseung watches her for a moment too long.
Then, carefully, like it’s not obvious at all, he scoots closer.
“You know,” she says after a while, “your nest is getting bigger again.”
“It’s winter,” he replies immediately.
She turns her head slowly.
He does not meet her eyes.
The kind that builds her a space in his nest without admitting it’s intentional.
Like the room is holding its breath with them.
She nudges his knee with hers.
“You always let me in,” she says lightly.
“You’re not ‘in’,” he corrects softly.
Outside, the world keeps moving.
Inside, everything is soft edges and shared warmth.
She leans back into the pillows, watching him pretend he isn’t slowly shifting closer again.
“You’re very clingy for someone who insists he’s independent.”
“Selective with who you steal blankets from?”
She laughs again, quieter this time.
Because he’s looking at her now.
Like she’s one of the things he gathered and decided to keep.
The nest shifts when she adjusts her position.
Like it makes room for her automatically now.
That thought sits between them.
“Stay a little longer,” he says eventually.
At the ridiculous collection of softness he calls a nest.
At the way he looks at her like she belongs there more than anything else.
“…Yeah,” she says quietly.
His shoulders loosen like something inside him settles.
Later, when she’s half-asleep against his shoulder, he carefully adjusts the blanket over her again.
Like love he doesn’t have a name for yet.
And she doesn’t move away.