A shocking trip outdoors.

For the finale, Priscilla props up the vibrator against Rosa's pussy forcing her to cum.

She leaves, with the implication that she's going to leave it on for a long time.

Obviously that didn't happen.
Instead, the next Scene is set up as Rosa is tied up out in the Yard at a Villa you've rented for the Shoot (and others).

She's tied up on her knees under a bench.
She's very exposed right now.

She's alerted to Priscilla's presence when her exposed ass gets spanked.

"Comfy?"
She says nothing.
"I can't hear you," she says, shoving a lubed up finger into her asshole.
"Yes- Yes! I'm...comfy."
"Good to hear."
Another spank.

"Let's make this even nicer for you then."

She lubes up a metal dildo and puts it in Rosa's asshole.
She requested anal play, so you made it happen.

It is connected to a power box to shock her- unbeknownst to the model.

"I hope you're ready for more," her Dominatrix says, lubing up another dildo.

Rosa act scared for the close-ups.