She gets fucked.

Christina is in full control.
Dee is her Sub.
Dee is her Girlfriend.

She makes her lick the entire 'cock' and doesn't make it easy for her.

Finally, she's satisfied.
She wanted to make sure that the cameras got all of the best angles.

She moved down to Dee's pussy, her legs spread open wide by the rope.

She presses the phallus against her pussy.

She enters her slowly.
She starts to fuck Dee.

Once she's worked up, she stops and partially pulls out.
Dee is, understandably, confused.

"Why don't you fuck me, Mistress?"
"Do you think that you deserve it?"
"Yes, Mistress."
"Will you only have eyes for me? Will you no longer flirt with other guys...or girls?"
"Yes, Mistress."
"Then you deserve it."

She fills Dee's pussy up again and starts to fuck her.

Christina pleasures her girlfriend, since she has earned it.
She makes Dee cum.

She revels in the afterglow, looking at a camera (which Dee misses).

"Now that you're a good ****, we can have some different fun...together."
Dee smiles.