I had completely forgotten that Jessie was straightening up the front of the store, so I was a bit surprised when she appears at my side, placing her hands on my shoulder. I put my arm around her waist and she snuggles close to me. Her body heat and her scent distract me from the show Tina and Sarah are putting on.
Leaning her head on my shoulder, Jessie whispers, "My god, that is so sexy."
By this time Tina has Sarah's blouse off and is massaging her breasts through her bra. She dexterously unfastens the front hook on the bra and it falls to floor, exposing Sarah's 34C breasts for all to see. Tina starts to squat down, running her tongue down Sarah's spine, lightly touching her fingers to her sides on the downward trip. As Tina's tongue reaches her ass, Sarah bends at the waist and places her hands on her knees, moving her butt into Tina's face.
Jessie moves in front of me and is leaning hard against me, gyrating her hips against my crotch in a dirty little dance.
"Hmmm, feels like big brother is liking the show," feeling my hard cock through my jeans.
Jessie stands up and puts her arms over her head and around my neck, drawing my lips to hers. My hands are busy making their way under her blouse to cup her breasts. We kiss for a long moment and I start to unbutton Jessie's blouse as we both watch Tina pull Sarah's thong down and take nips at her ass. Sarah reaches up and pulls her ass cheeks apart, putting her morsel on display. Tina moans appreciatively and zeroes in on it, ringing it with her tongue before diving in with gusto.
"Oh my god," Jessie moans.
I quickly have Jessie's blouse and bra off and am squeezing her tits, running my fingers over her nipples. Jessie, for her part, has her skirt bunched around her waist is grinding her bare ass into the crotch of my jeans. It turns out she doesn't wear panties except when necessary. After a couple a minutes of this, Jessie turns and squats in front of me, furiously working at the buttons on my Levi's. Finally my cock falls free and is pointed directly at Jessie's mouth. Not wanting to disappoint, she eagerly opens her lips and guides the head of my cock into mouth, swirling her tongue rapidly around the head of my dick before sliding it all the way in and bumping her nose on my belly. I groan loudly as Jessie is bobbing her head on my cock, getting Tina's attention.
"Hmm, look at those two, not your normal brother/sister relationship there!"
Sarah looks back at us and says, "Wow, that is wicked freaky!"
Sarah then stands and turns, presenting her pussy to Tina. Tina dives into Sarah's pussy with the same gusto she did her ass, running her hands up the back of Sarah's thighs and grasping her ass for leverage. Sarah winds Tina's dark hair in her hands, pressing Tina's head into her folds. Tina finds her clit and Sarah arches her back in ecstasy.
Jessie suddenly pulls her mouth from my cock and stands, bending at the waist. Looking over her shoulder, she says, "Come on Jeff, fuck me with that thing."
I take my cock in my hand as Jessie backs up a bit and I rub her silky lips with the head. Jessie reaches between her legs and presses the head of my cock into her moistened slit, then leans into me, forcing my cock into her. She moans as she sinks onto me, starting to finger her clit as I begin to saw in and out. I remember that Jessie liked her tits being handled roughly, so I decide to test how rough she likes it. I reach forward and wrap her honey blonde ponytail in my right hand and start to draw it back while placing my other hand in the small of her back to force an arch. I watch her chest rise in the mirror and see her pierced tits bouncing with the force of my thrusts into her.
"Yesssssss, Jeff, oh yesss, fuck me hard, brother, fuck me hard! Come on, pound my pussy, ahhh, ahhh, ahhh!"
I pull her hair harder and continue to pound her from behind. Her eyes are open, watching the mirror as we get to closer to coming. In front of us, Tina's tongue is working its magic on Sarah, her breath coming in gasps and her legs starting shake. Her orgasm starts as a low gurgle in her throat and extends out to full-throated yell as her legs quiver. Her chest is heaving and her nipples are fully erect atop her breasts.
I feel the tingle forming deep in my balls that is signal of impending release, and I speed my thrusts up. Jessie is deep in the throes of my cock work and is closer to the edge than me. Her breathing is rapid and ragged, and she is grunting from deep in her belly.
"Oh Jeff, oh god yes, Jeff I'm coming, come on, fuck me, fuck me harder, ahhhhh, yesssssssssssssss, oh god yes, that's it, that's it, ahhhhhhhhhhhhhhhhhhhhhhhhhhhh, yessssssssssssssssssssss!"
Jessie's liquid release coats my cock and runs down the shaft to my balls. As Jessie is coming, Sarah finishes and collapses to her knees, embracing Tina and kissing her deeply. I feel myself on the verge of unloading into my sister's depths as Jessie is turning to a trembling mass in my arms. Just as I am about to come I reach around Jessie's waist and lift her up easily, essentially dropping her onto my cock as I release my load. Jessie reaches her arms up and around my neck, and hooks her feet behind my knees as I grunt my way through each spurt of come I release, filling her to overflowing. I hold us there, leaning against the entrance, letting the last bits of my orgasm subside. Jessie is kissing me furiously, probing my mouth with her tongue, when suddenly she squeals in delight.
While I was pumping my sister full of come, Tina had lowered Sarah to the floor to recover, and had crawled on her hands and knees to where we are. Seeing that I was finished, Tina took the opportunity to share my come with Jessie and was eagerly lapping at her pussy and my balls as our juices flowed out of her. Having finished cleaning us, Tina stands and runs her tongue up Jessie's belly and inhales her left nipple into her mouth, flicking the barbell with her tongue. Tina then attacks Jessie's mouth, sucking Jessie's tongue into her own hot hole. Jessie unhooks her feet from behind my knees and wraps them around Tina's waist. Tina encircles Jessie's waist with her arms and lifts her off of my still hard cock. Turning, she carries Jessie to the mirrors and eases her down next to Sarah. Tina gets up and Sarah rolls over and picks up what Tina started, sucking Jessie's tongue into her mouth and embracing her hard.
Turning to me, she says with a wicked smile, "OK stud, who's next?"
