When she's on that position, she likes to do WHAT?! (Parts: 7,8 and 9)

If you saw the past 2 updates, that I made today:
When she's on that position, she... Farts?! (Parts: 1,2 and 3)
When she's on that position, she... Farts?! (Parts: 4,5 and 6 - uncensored)
You must had thought that, sooner or latter I would post these...

Now, before you see the three Drawings
(or after depending of when you're reading this!):

When she's on that position, she likes to do WHAT?

Here's some "backstory" (heh, "back"! - Sorry...).

After all that Her boyfriend asked her to do,
With all those squating and farting things, she thought that,
I would be a great idea if she, as she was attending to all his pledges.

Would propose something that, he would agree, even that,

He would do that reluctantly, since now he owe her...

 
That, every time that she wanted, for the rest of that day,
He would serve her as her personal Toilet...

 

..their first time was a little after they end (the 6 part).

But then again, a little while after that,

When she was taking her clothes,

So that she could wash'em:

And one last time,

She asked him, just before her bath: