That river in Egypt

Rennala and Damocles stood in her bathroom. He was still cuffed, but she had allowed him to step over the cuffs and have his arms on his front. In the room there was a sink, toilet, shower, mirror, and all sorts of cupboards.
"As you know Pet, you get 1 supervised cleaning unlock per week. That's in 6 days, so the rest of the time you will shower with the cage on"
He nodded, she was controlling every part of his life, he couldn't even clean without it being her way. And actually showering there was like another step towards accepting that he was staying, and he didn't like it. She handed him the pack of Q-tips that she bought.
"I'm sure you can figure something out with these, I don't want you growing mushrooms in that cage"
Rennala walked over to the shower and pointed at the wall. It had 2 taps to control the water, 1 for hot and 1 for cold. It was the type of shower where you had to use both to get any sort of water pressure. There was a mark on the hot tap and another nearby on the wall so that if you turned it far enough, the marks would meet.
"These marks are for you Pet. You're not allowed to turn the hot tap beyond this point. You can use as much cold water as you want. At this position, it's definitely enough to have a nice warm shower, but hot scalding water is for me only hehe"
He didn't like it. She was denying him things that he wanted just because she felt like it, like she was reserving the best for herself.
"Your towel is hanging over there, use the bath mat to avoid getting the floor too wet, your soap is the bottle on the floor and not the bar, and I think that's it Pet"
"...Yes Miss..."
She placed a spare set of clothes on the bench before turning around to leave.
"Oh and one last thing. Don't take too long. If I feel like you are, then I miiiiight just turn the hot water on in the kitchen and leave you with none hehe. See ya Pet"
She walked out, turned the fan on and closed the door behind her.