Yes, he deserves it

He lies there as if he was still waiting for something... You look at him, his penis is still erect. You take his dick in your hands, as its length requires both of them, and stroke it for him. He soon finishes off right onto himself, just as you did not long ago.

Lily: Here, you deserved it, you gave me great pleasures, it is only fair I return the favour. You may go now.

Now that you have brought him some pleasure in exchange for yours, you can depart. You meet Johanna outside, she gives you a strange look, but doesn't ask about what has happened inside. She can imagine, as she had sex with Peter many times before, but seeing her lady do it so casually with a slave has left a certain distaste for her... But her opinion is not of your concern.