"I don't get it," Rin murmured. She had her head rested on Kyousuke's shoulder as she snuggled up to him.
"Hm? You don't get what?" Kyousuke peered at her face, seeing her creased forehead and pursed lips.
"Is it really so bad, family members being in love with each other? People think it's creepy and stuff, don't they?"
"Yeah, I know." Kyousuke exhaled heavily. They couldn't breathe a word of what they were doing to anyone, not even to their closest friends. If they did, it would all be over and he couldn't bear that. The risk of destroying friendships was too great. "Don't worry about it, Rin." He brought a hand to her head, gently stroking her hair.
"I wish we could just tell everyone and it would be fine, you know?"
"I know."
Rin fell silent, deep in thought. "What a troublesome situation we're in. Because we're family, we're not allowed to do this sort of thing with each other, so we've gotta keep it secret. It's such a terrible trouble."
"Mmm."
"You know... I am glad that you are my big brother, though. Even if you can be an idiot at times."
Kyousuke snorted, a smile showing on his face. "Yeah, sure. And I'm glad to have a cute little sister like you."
"Uuu..." Rin's cheeks flared and she hid her face. "Shut up, dummy."