Lick her

Julia lay down and spread her legs. "My pussy is all wet and sticky, clean it."

"Julia," said Eddie, "from now on, you will refer to Robin as Dumbslut. Got it, bitch?"

"Yes, master," said Julia. "Dumbslut, lick my pussy."

"Robin, you must refer to Julia as 'Mistress,' and me as 'Master,' got it, Dumbslut?"

"Yes, Master," said Robin. She crawled over to Julia and started licking her friend's pussy.

"Robin, may I point out that being treated like a worthless slut really turns you on?"

Robin moaned as she went after her friend's pussy with more gusto.

Eddie watched with amusement. He spotted an old tennis ball by the edge of the yard. It had been outside for quite a while. He walked over and picked it up. It was dirty with mud and grass stains. He tossed it in his hand and walked over to Robin. He smacked her hard on the ass, making her yelp into Julia's pussy.

"Julia, orgasm," said Eddie.

Julia orgasmed on command, which made Eddie realize how much power he had over Julia.

"OK, that's enough," said Eddie.

Robin stopped lapping at Julia's pussy. She was breathing heavily.

"The two of you crawl over here and face away from me."

The two girls got on their hands and knees in front of Eddie.

"When I toss this ball, the first one to retrieve it with her mouth, gets to suck me off and have gets the pleasure of tasting my cum. May I point out you are addicted to my cum." The loser gets her wrists handcuffed to the loser's ankles, so she has to stare at the winner's ass while the winner sucks me off."

He watched the girls look at each other then lick their lips. He tossed the ball to the far end of the yard, and the girls scampered off after it while Eddie filmed them.