"Do we have to?" Ken's voice is even whinier now, although Chikusa may note that the actual resistance behind this complaint is weak. There are times when Ken knows he's dirty enough that it's going to cause actual problems, or complaints from Mukuro, and - while he's no happier about bathing - he grudgingly accepts it as necessary. He knows he's about at that point now, and he's not going to fight Chikusa too hard.

Especially since he just got sex. Sex always makes him more manageable.

"We going home, Kakipi?" This is said with much less whine and much more curiosity. If they're done for the day, they can go home and see Mukuro. And Ken can probably curl up on Chikusa and go to sleep. Ken's restlessly energetic as a general rule, but a long day and a sex session does tire him out by the end of it.