That's entirely fine because goal number one here is getting Haru off. "Want me to keep doing this or would you like me to show you more things you enjoy?"

"Choices, choices. I assume there's at least one thing you are presently not able to show me without breaking some rules."

He can keep licking and kissing and lightly sucking on Haru while he talks. "But there are quite a lot of other things I am."

"Quite a lot, you say. Well, here I am waiting to be wowed. Pick something wowful."

He can do that.

Some time later Haru lounges bonelessly on his human pillow, giggling intermittently.

And his human pillow is somewhat unbearably smug about this.

It's cute.

Haru eventually manages to locate enough bones to grab his notebook and start peeking under sticky notes and making annotations.

Yutaka can wait until there's a lull in that and/or Haru wants something from him, then, whichever happens first.

Eventually Haru has read, not all of the notebook but all the high level summaries and everything in them that was hiding under sticky notes and enough spot-checking of the more detailed stuff that he's done for now. He closes it again.