fortunachan said on the previous post:

Not head?, maybe is Sukuna in Sakuya's body

Looks like you called it.

It's a wee head.
-The Demoman 2013

Suddenly reminded of Pinky and the Brain.

At the end of the story, we all know what'll happen :
Youmu willn't be able to feel sexual pleasure ever again. If she gets out of there alive. She came 33 fucking times on a single day...