Breaking out the heavy equipment

Holly and I, wrapped in each others arms struggle to catch our breath. I can feel it as I come down from the euphoric state we were just in and Holly idly is tracing the outlines of my muscles on my chest and stomach with the tip of her finger before she stops. Her head shoots off my chest alerted by a sound I didn't hear, not at first anyway.

"What is it?" I ask only to be met with holly bringing her finger to her lips and shushing me. She has a brilliant smile on her face as she climbs off me, naked she begins walking to her bedroom. Her blonde hair whipping around to stare at me as she notices I'm not following. Telling me with her eyes to follow, so I do.

A few steps behind Holly I can see her bare little heart shaped ass swaying as she silently tries to creep towards and open the bedroom door. Finally hearing what Holly must have heard from the living room there is a powerful motorized buzzing noise, silicon parts thudding and shaking as well as muffled moans and kissing sounds.

Holly cracks the door open and we both peer in the door frame, our naked bodies pressed against each others as we sneak a peek. I look over to the bed and see nothing. It is perfectly made and the first thing I notice, much to my disappointment is that Holly and Jessica have completely moved in and it looks amazing. Given the clues about moaning and buzzing I was hoping to see Jessica and Yui engaged in some sex act.

"where are they?" I ask whispering into Holly's ear before burying my nose into her golden locks and sliding my hand over her lower stomach.

"Look!" she whispers back, pointing to the floor by the bed, and there they were. Both of them straddling this curved, black curved saddle looking contraption, plugged into a wall outlet next to the bed. Clearly powerful, the entire rig is shaking but there seems to be two ridges on the top that are actually what is vibrating. Both of the girls are pressing against each other, straddling a ridge as it shakes and tremors against their pussies. Both of them completely naked as well, kissing in-between moans and shivers as the onslaught of stimulation on their wet pussies takes them over.

"Oh! I love the sybian!" Holly coos at me as she reaches behind me and squeezes my cock. I can see a closet door open and a bunch of Holly and Jessica's sex toys have been pulled out, now laying in a pile by the bedroom closet door. "they made a great choice. Look at our girls go!" And we did, we watched Jessica's newly red hair wave as she tossed her head back, bracing from the direct contact onto her clit as she rolled her hips up and down, grabbing Yui by her hair and pulling her in for a kiss, their tongues dancing over each others as they both moan out, their hips grinding against the toy they're both straddling, their breasts pressed against each others as they ride themselves into a screaming, howling orgasm while Holly and I watch from the doorway.

I have never seen Yui cum like that before and I can't stop staring as Jessica, still holding onto Yui's hair reaches for another small box that attaches to this power toy by a cable and twists the dials clockwise, causing the sybian to start buzzing louder, rumbling to a chaotic high speed that almost immediately doubles Yui over. She shoots her hands down onto Jessica's thighs for balance and over the noise of the machine Holly and I hear Jess saying "this is why you should always let me have the remote" before kissing Yui deeply, muffling one of Yui's guttural blissful howls. This causes Holly and I to laugh, Holly turns and buries her face into my chest, biting my pec to keep from laughing so loud they hear us.

Jessica has climbed off the sybian but hasn't let Yui up yet. Yui, her tiny athletic frame writhing, every muscle in her body convulsing with bliss as Jessica stands over her, toying with the remote, twisting the dials up and down making Yui's moans rise and fall at the same rate.

Holly, probably sensing my hard cock digging into the small of her back as we watch Yui cum again, spins around and drops to her knees in the doorway to her own bedroom and begins sucking on the tip of my cock, working more and more of it down her throat as she looks up at me. I can feel her tongue sliding down my shaft and all I can do is jam both hands into the doorway to brace myself.

When I look back up from Holly I see that Jessica and Yui have moved from the floor to the bed. Jessica is laying on her back and Yui is straddling her face with her back to the door. Jessica's dyed red hair cascading out onto the mattress as she grips Yui's tiny little waist and I watch as Yui grips onto Jessica's breasts, her palms rubbing Jess's nipples as both of their hands squeeze tightly onto what they're each holding.

Holly takes a break, pulling my cock out of her mouth with an exaggerated popping noise "we should let them know we're here don't you think?"