Fuck Sabrina while Katherine takes the stick

You position Katherine for her next task. She is seated on the floor with her hands still bound to the bedpost with her legs free. You part her legs and push the end of the mop, that Katherine was just sucking, against her snatch. She gasps, feeling the hard, wet shaft slide into her orifice.

“Good… how does that feel?” you ask.

“F… feels good…Master. ” she replies, a little in shock at how easily it just went in.

You smile and tell her, “Well if you give me a good show with that, then you might convince me to use the real thing…”

“Yes, Master,” Katherine replies.

You wedge the mop against the floor and wall so that Katherine has something to push against. She tries it out, pushing her hips out forwards. The stick sinks deeper into her pussy. She moans softly and lowers her hips. You hold the mop in place so that she slides back out with ease.

“You’re such a naughty girl that you need to use household objects to satisfy your needs,” you tell her. “Isn’t that right?”

“Oh yes, master. I’m so horny, I’ll fuck anything,” she replies. Her body pinkens up from the blood rushing to her skin. She thrusts again, rocking back and forth onto the mop handle, becoming more and more comfortable on the stick. “Ah… it’s actually feeling pretty good,” she reveals, half standing as she slides back and forth with a smoother rhythm now.

“Your pussy is devouring it,” you point out, watching her pussy lips seal over the phallic object like her lips were doing to your dick earlier.

As your thoughts drift to your dick, you return your attention to Sabrina. She is getting a shot of her sister getting fucked by the cleaning implement. You silently get her attention and signal for her to turn around and back into you. She has a look of hesitation in her eyes, but she eventually follows your instructions, turning her perky ass towards you and backing in. Your free hand caresses her soft smooth ass and gives it a squeeze. You feel her body tense up but she doesn’t make a sound. You bend her over so that she leans over the end of your bed, next to her sister. She angles herself away so that they don’t bump into each other while cautiously keeping her camera pointed at Katherine. You use your free hand to align yourself with her pussy and push in.

Sabrina has to muffle a moan as you enter her. As discreetly as you can, you start to pump in and out of the petite brunette while holding the mop secure for Katherine to fuck.

“Moan for me,” you order Katherine

“Ooh… OOhhh…” Katherine responds, making enough noise for you to pump her sister a bit harder.

You can feel your crotch get very wet now as you slide your cock in and out of Sabrina’s slick pussy. Fortunately, Katherine is too distracted to notice anything weird. Sabrina continues to record her sister fornicating with a stick while you continue to grind into her backside.

From your angle, you can’t see Sabrina’s face, but you can tell she is struggling to stay silent. She grabs at your sheets and buries her face in your mattress. Her camera hand wavers, no longer able to focus on the girl beside her. You feel her muscles contract around your pole. Her knees start to buckle. You can feel an orgasm imminent.

Suddenly, Katherine stops and cocks her head in Sabrina’s direction. Sabrina catches the movement and freezes!

“What was that?” Katherine asks.