The duo get fucked.

Celia and Donna are soon naked- as they are happy to be.
They are tied up again.
They are gagged.
They are face to face- at their request.

The man returns and gives them each a spank.

"You want to get fucked?"
They shake their head 'no,' but they are lying for fun.

"I'll make you earn it."

He ties thin twine around their nipples and connects them to a log.
The twine is connecting the pair as well.

He playfully bumps up against each of them to make them shake.

"Now you get your reward."

He pulls out his cock and starts to fuck Donna.

He fucks her hard and pulls on her wrist for leverage, pulling her up on her feet.

He can feel that she is about to cum, so he pulls out.

He goes behind Celia and starts to fuck her.
He watches Donna stare at him longingly- she wants to cum.

After he denies Celia's orgasm, he goes back to Donna.
He takes off her gag.

"You can cum if you scream for me."
"Yes, Master."

He fucks her hard as she cries out in orgasm, pressed up against Celia!

She loves it.
Celia loves it.

Now it is her turn.