Jenni cleans up the mess.

You partially-untie Jenni and send her into the Room.
She's too broken to do anything bad right now.

She sees her Step-Sister all covered in sweat and cum.

She thinks back to when you welcomed her back as your **** after Training was over.
You made her suck your cock in submission and you came all over her face and chest.

With no will of her own anymore, she doesn't say a word and does what she is told.

She licks the cum off of Donna's ass.
It is sweet and salty.
She's used to the general taste by now.

Without having to be told, she also licks Donna's asshole and pussy, getting her juices off as well.

She sits down submissively when she is done.

You enter after you see her finished and untie Donna from her position. Dee is following you, still partially-tied up.

"All 3 of you have earned a rest for now," you explain.
"Thank you, Master," they all say.
"You're welcome. Speaking of welcoming, Donna here will finally get to live out her fantasy- one of them, at least.

Tomorrow she will get to play her long-lost 'Sister.' She's all yours to dominate."
"Thank you, Master," Donna says.
"Let me see what you can do before you thank me too much. Disappoint me and bad things will happen. Got it?"
"Yes, Master."