Master stacks her on top of you!

"Anything, Master!" Yoshino squeels beside you.

The Mattress shifts beside you and you steal a look at Yoshino. Master has positioned himself behind her and is grinding the fat bulge in his pants between her ass cheeks. He reaches forward to her little shoulders and pulls her out of a doggy position off of her arms and back onto her knees. She arches back into him and lifts her arms up behind his head. His bear sized paws explore the curves of her body.

"Eeeeeeeeeeeh..."

Yoshino releases a long sigh as Master fondles her massive tits through her sheer nighty. She continues to grind back into his growing bulge and eliciting and approving growl from her Master. He leans down and kisses her deeply but his hands have a more sinister purpose. With a rough tug the thin straps to her nighty break and her giant sensitive breasts spring free. With another powerful tug, he tears the remaining shreds of her nighty from her body. She moans deep into his mouth not letting go of the back of his head as his hands pinch and twist at her pierced nipples.

The sight of him dominating your sister wife is too much. You succumb to the powerful vibrations within your clit.

"EEeeeeeeeeeeeeeeeeeeeeeergh!" you clamp your trapped hands into little fists and grunt through a painfully harsh orgasm.

Your moaning catches the attention of Master. He smiles down at you and pushes Yoshino forward so that she tumbles onto the bed beside you. He pounces on your bound form and rips you free of your own nighty. Your breasts swing free onto the mattress beneath you. Only your thong and heels remain!

"I WANT MY GIRLS STACKED TONIGHT!" He laughs as he pulls Yoshino down the bed and out of your view.

Stacked? you wonder briefly.

"Ooooooomph!"

Suddenly you feel Yoshino's weight along your back as Master bends her over your ass. He pushes her down the entire length of your back. You feel her ample tits slap against your bare back and the amethyst strands of her nipple jewelry scratch your sensitive skin. Master's intentions become immediatly clear. He is going to bind her on top of me! you realize.

Master opens a hidden compartment in the head board and withdraws three metal cuffs. Bending her over your raised ass, he positions Yoshino's so that her legs are spread to either side of yours He locks each of her ankles to your own and cuffs her wrists around your little waist beneath you. She has been effectively bound bent over you with her pussy positioned directly above your asshole. Yoshino moans in anticipation as the cold steel chafes at her tiny wrists and ankles. Her cuffed hands play with your exposed breasts beneath you.

Click!

There is a loud clicking noise as you feel Yoshino's collar being clipped into yours. Yoshino's breath is hot against the side of your face. The slightest motion between you causes your collars to catch. The feeling of her locked so closely is intimate and almost reassuring in your **** position.

BUZZZZZZZZZZZZZZZZZZZ!

Yoshino wails hopelessly into your ear as her own clitoral augment is activated. The sound resonates with a matching intensity of your own. Master isn't playing around with these vibration settings tonight! Yoshino's pussy lips buzz against your ass cheeks as her clit dances between them.

"I have such an oral fixation!" she whispers as she sucks your earlob into her mouth. You turn your head and give her access to your neck. Her tongue dances across your exposed skin. You feel something wet and realize her vaginal juices are trickling down your ass, pussy crack, and mix with your own slickness coating your inner thighs.

The mattress shifts as Master's weight settles in behind the two of you. Yoshino cries with need into your ear. She needs his seed. You are ashamed to think that you need it too! Both of your backsides are stacked and available to your Master.