It meant Itachi was ancient, and Shisui was right on track. But there really wasn't much to laugh about here, since Shisui's brain automatically connected the mention of slowness with Itachi's illness. Instead of something snarky then, he shot the other a concerned glance. There was nothing said between them, but the question was there.

Shisui averted his gaze, reaching out to smooth his palm over Itachi's. Seemed fine to him. Have a poke right in the center of your palm, Itachi.

"Mm. Have a theory?" About the recurrent mis-communications, that is. Theories; he loved hearing all about their theories. especially their conspiracy theories. Those, however, might have occasionally gotten out of hand~

As for the bird, Shisui moving around earned him a peck on the head, to which Shisui ducked, waving the bird off his hair. He was rewarded with a peck on his knuckle at that. "Oi oi! What a cheeky bastard! Get out, damn it." He might have been scowling at first, but ended up laughing at the bird's insistence. "He reminds me of Sasuke." Shisui's eyes twinkled at the mention of his little cousin. "Heard he was mixed up in the same mission in the end."

Just-- casually dropping that there, too.