Not yet. Anal punishment for Sabrina next

Katherine lies there motionless, head turned away, her face wet with tears listening to her sister's agony. But she does not yet do anything.

You yank Sabrina off your lap and lead her over to the couch. You tie her hands to one leg and tie her feet to the other, so that she's stretched out along the length of the couch, on the floor. You move her onto her hands and knees, and then stuff pillows underneath her so that she is stuck in the doggy position.

You move behind her and push a finger lightly against her anus. Sabrina squirms and starts shaking her head, pleading for you not to do anything to her virgin ass.

"Sabrina is now going to get her anal virginity taken away, thanks to you Katherine and I promise you it won't be pleasant," you say out loud to Katherine. Katherine does not respond to this.

"Your sister is going to let you get anally violated now," you whisper into Sabrina's ear, "She could have stopped this. Don't worry, you'll begin to enjoy this soon enough."

You grab some lube and pour it generously over your hard cock and all over Sabrina's ass and back. She's soon glistening from the oil, her tight pussy dripping with it, her perfect ass and skin inviting you in. You position yourself behind Sabrina and start pushing your cock against her asshole. Its difficult to get in and you push harder, trying to push it open. Sabrina screams in pain into her gag as you **** your head in, and then push further, getting almost half your length inside.