They please each other...and their Mistress.

Amanda and Dana start to lick each other's pussies.

The electrodes (and their mistress) encourages this.

They do a good job.

Even if this wasn't for a video, the pair would still enjoy this.

Priscilla plays with them by turning the wattage up from 20 to 40.

The zap is not actually painful, but it zaps the body to make impulses happen.

That explains why they suddenly separate!

"Get back in there."

She turns it down and spanks both of them as they begin to lick again.

"When you cum, this stops."

They both finally reach orgasm, Amanda screaming in joy as always.

Dana is pretty loud herself.

"Good, slaves. I think I'll keep you.
You'll stay in the basement and maybe I'll bring you some more ladies to pleasure.
What do you think?"

They nod and smile.

The camera pans up and cuts.

You consider that maybe it is time to have Priscilla be submissive for a change.