Zoro glanced up from the shelves of the Sunny's library to see Sanji slowly descending the ladder, a book in one arm. Sanji shuffled towards the shelves and squinted before finding the gap and slowly replacing the book.
"Hey."
Sanji turned and blinked slowly, spotting Zoro. "Oh, hey," he said. His visible eye was half-closed.
"How's that cold?" Zoro asked, moving away from the shelves he'd been checking out to look over Sanji instead.
"Chopper gave me some medicine," Sanji mumbled, yawning. "Symptoms're gone for now, but . . . stuff made me sleepy as shit."
"So go take a nap," Zoro said, brushing some stray hair away from Sanji's cheek.
"I don't wanna," Sanji muttered, like a child at bedtime. "Gotta plan dinner . . . make snacks for the ladies . . ."
"They can skip snacks for one day," Zoro said firmly. "And nobody here'll mind if dinner's late or not as fancy as usual. Your health's more important."
"I'm not taking a nap like a kid," Sanji said stubbornly, yawning again. "Or a green-haired idiot I know."
Zoro rolled his eyes, strode back to the shelves, looked around, and grabbed a book. He sat on one of the cushioned benches and opened up the volume.
"Sit," he ordered, and Sanji curiously sat next to him. Zoro snuck a hand around Sanji's shoulders and combed through his hair. Sanji sighed in appreciation.
"I'm still not gonna sleep," he muttered.
"That's fine," Zoro said calmly. "I'm just going to read you a story. Then you can go back to doing whatever cooks do."
Sanji squinted at Zoro.
"Fine," he mumbled, too tired to argue or remove himself from Zoro's arm. He brought his legs sideways under him and adjusted himself.
Zoro turned the page to the first chapter.
"Many moons ago, in a far-off place, lived a handsome prince with a gloomy face; for he did not have a bride . . ."
He had a very good storytelling voice. It didn't have the theatrics of Usopp's or the serenity of Robin's, but it was very good nonetheless. Sanji was only semi-aware of himself slowly relaxing further and further as the story went on.
It was only a few chapters in when Zoro felt a heavy weight on his shoulder. He glanced over with his eyes and saw that Sanji had fallen asleep at last, lulled by the slow and deep voice.
Zoro smiled and set aside the book, turning his head only slightly to kiss Sanji's forehead. Sanji sighed faintly and snuggled closer to Zoro in his sleep.
"Sleep well . . ."
They were found by the crew an hour later. Both were sleeping contently now, Sanji's head on Zoro's shoulder and Zoro's head resting against Sanji's.