a/n: ok, I couldn't help it. I love cats. And so many people wanted Rin to keep the kitten! So here we are, lol. I think that this will be the only direct follow-up drabble. Maybe. But probably not. Thank you for reading!

In retrospect, letting his brother keep the cat was a terrible idea.

They hadn't been prepared much at all. No litter, no proper box, no toys. The food and water dishes were just small bowls. Pets—especially young cats—needed constant attention. With Yukio being an on-call exorcist and Rin being a full-time student, neither of them could tend to its needs immediately.

Kuro was a big help at first, surprisingly. When he became lonesome, the two played together. But there were many differences between a regular cat and a cat sidhe. Kuro played rough. Kuro was used to Rin's style of training. Kuro was not used to the delicate tiny creature with baby teeth and teeny claws. Which was probably the reason why the little guy was bleeding when they arrived home.

"Kuro says he didn't mean it," Rin said, although Yukio wasn't sure if he was talking to him or the kitten cradled in his hands. "They were playing and he got carried away."

Kuro mewled guiltily, as if in agreement.

"This isn't a good idea and you know it, Nii-san. We can't keep feeding him scraps! He needs actual cat food, and that costs money you don't have."

"He's so small and defenseless, Yukio! Where would he go?"

Yukio sighed irritably in response. This was very much like the time Rin had brought home that stray dog into their dorm. "What if it happens again? We don't have time for vet visits."

"We don't need a vet," Rin said, sounding confident. "You're the one who wants to be a doctor."

"For exorcists, Nii-san. Not for animals!"

"I'll figure something out," Rin vowed, with a gleam in his eye that made Yukio's eye twitch. "Trust me on this, ok?"

Yukio opened his mouth to refuse. To try to fight it. But Rin was already walking away, tail swaying happily, kitten still in his hands. Kuro followed immediately.

The next morning, after breakfast, Rin handed Yukio the bento he'd prepared the night before with a smile that made him slightly suspicious. Yukio left first, like usual.

The day went on as it normally did. They were at lunch when Yukio spotted Rin across campus, opening a bento. He was fishing out his chopsticks, looking caught up in a conversation with Miwa and Shima. It wasn't uncommon for him and his brother to see each other around this time of day.

Yukio stopped walking, eyes bulging when he saw a little fluffy head pop out of the collar of Rin's shirt.

He was rushing over in seconds, fixing a disapproving glare on his brother, hardly paying attention to the other boys sitting with him. "Nii-san. Care to explain why you brought the cat to school?"

And there it was: the same smile that he'd flashed this morning, all innocence as he offered a beef strip to the animal to nibble on. "This way I can watch him, Yukio! And he doesn't mind. He likes me."

This was his plan? Yukio's frown and glare deepened. What if Rin was caught? The kitten wasn't a familiar. It was dangerous to have around the cram school. He didn't even want to think about what Sir Pheles would say. And... and what if the cat had to use the bathroom or something? What if he got too hot hiding in Rin's shirt?

"You can't do this again," Yukio decided firmly. "He needs a new home, Nii-san. Quickly."

"But Yukio—"

"I'm serious. He can't stay."

He walked away before Rin could argue, and Yukio didn't see him again until that night. He'd had a meeting, so he arrived home late. Super was already prepared, and Yukio blinked in surprise when Rin wasn't already at the table. He made his way upstairs, opening the door to their dorm with the intention of telling Rin that he needed to eat.

"Nii-san—"

He stopped when he saw his brother, curled up on the bed like he so often was, with Kuro tucked into his abdomen and the kitten pressed against his collarbone; all sleeping peacefully. His expression softened a little as he drew in the scene. A loud purring sound reached his ears.

He couldn't tell which one was the source.