Shirogane also looks towards the top of the bookshelf and then...he sighs.

Mostly in annoyance. Not in annoyance that Aria-shachou had technically interrupted. He wasn't annoyed about that. As far as he was concerned, he had meant to kiss Akari twice, and had kissed her twice. That was good enough.

He was annoyed that a cat that pudgy didn't have any business in climbing bookshelves. He gets up from the couch, and walks over, reaching his hand toward the cat, "Come here."