“...Yeah.” Chikusa’s fingers rub at the fabric he has pinched between them. “Mukuro-sama and I should be all you need.”

That’s why he does things like blowjobs without caring if he particularly enjoys them or not. Even though he’s well aware that it’s impossible, he wants to be everything he can for them. He wants to be a partner, a tool, a lover who can do whatever is necessary to make them content and never leave him. If Ken can just go off and pay someone to do something that Chikusa could do but didn’t…

Admittedly, that doesn't consider Chrome's place in things... but Chikusa is still sometimes unsure of that himself.