The moon hung high over the private onsen, its glow reflecting in soft ripples across the steaming water. Most of the crew had turned in for the night after a long day of travel, and the springs had finally quieted down.

You’d stayed back to enjoy the peace… and so had Robin.

The two of you had slipped into the water alone—well, almost alone. Nami had dozed off nearby, her arms resting lazily over the edge of a rock, soft breaths rising in the quiet night air. She was clearly out cold, her soaked towel still clinging loosely to her.

But your attention wasn’t on her.

It was on Robin—who had slowly stepped out of the water, rising in front of you with her back turned, beads of steam sliding down her bare, flawless skin.

She stood at the edge, hips swaying gently, slowly. Then… subtly, deliberately, she began to bounce—just a bit. Her thick rear jiggled with each movement, her long, wet hair clinging to her back.

And then you heard it—barely above a whisper.

“…Please…”

She looked back over her shoulder, cheeks flushed from the heat—not just the water. Her voice trembled as she repeated it.

“Please… pound me.”

You blinked, tension flooding your chest in a heartbeat. Robin’s eyes were glassy, lips parted as she bent just slightly more, her rear lifting with a needy tremble.

“I’ve been holding it in all day,” she whispered, so desperate and breathless. “I don’t care if she’s asleep. I just… I need you. Now.”

She bounced again—more needily this time, the soft clap of her curves masked beneath the distant splash of water.

Her voice was a hushed whimper now:

“Please pound me… I’m yours.”

And the moment she said it like that, you were already stepping out of the water.