SakuAtsu.
__________

Atsumu walked over to Sakusa, stroking his stomach, startling him.

"Did you know that... the bird has to go into the nest??"

It took Sakusa a few seconds to figure out what Atsumu meant, he embarrassedly looked at Atsumu who was groping his lower body, causing it to stiffen underneath.

So Sakusa couldn't stand it, so he carried Atsumu and threw it into the bedroom.... Things adults and children shouldn't know :))

__________

For those who do not understand, the bird here refers to Sakusa's cuckoo, and the nest is Atsumu's small hole :))