Chuuya had been worried about the whole biological process of kemmer that should have resulted in being female for the duration, considering Dazai was the only person Chuuya was around for the duration of their trip. But Chuuya neither wanted to be female nor have sex as or with one.
Dazai solved it by lingering far too long with the female kemmering they were trying to interrogate until both of them shifted in response to it.
"I think I might stay here a while," Dazai commented, all besotted heart-eyes.
Chuuya yanked him back to their room and fucked him mercilessly.