Preface

You Shook Me All Night Long
Posted originally on the Archive of Our Own at http://archiveofourown.org/works/59676700.

Rating:
Explicit
Archive Warning:
No Archive Warnings Apply
Category:
F/F
Fandom:
Supernatural (TV 2005)
Relationship:
Dean Winchester/Sam Winchester
Characters:
Dean Winchester, Sam Winchester
Additional Tags:
Female Dean Winchester/Female Sam Winchester, Sister/Sister Incest, Vibrators, Masturbation, Rimming, Vaginal Penetration, Past Jessica Moore/Sam Winchester
Language:
English
Series:
Part 2 of Girlchesters
Stats:
Published: 2024-10-12 Words: 1,814 Chapters: 1/1

You Shook Me All Night Long

Summary

Deanne gets her sister a very thoughtful gift.

Notes

I'm gay and all it took was turning the blowjob brothers into girls for me to feel comfortable writing femslash. My brain is broken.

You Shook Me All Night Long

“Really?”

Sam raised her eyebrow at the sight of Deanne’s newest toy for her: a small, black vibrator, a little shorter than the length of her hand, adorned with white pentagrams. A heavy little bullet, even without its batteries.

Deanne grinned, a lopsided smirk that was more convincing than it had any right to be.

“I thought you’d like it—y’know, since you fuck any demon who looks at you twice.” She wasn’t really mad, but Sam could pick up on a bitter undercurrent in her voice. Not like she had any right to be mad anymore, not when she and Deanne had been doing the dirty since they were kids.

“Very funny,” she scoffed, but technically her sister wasn’t wrong. Her last vibrator died sometime before Deanne was dragged out of Hell, and she didn’t realize how deeply her mental health relied on her occasional dabbling in stress masturbation. 

She practically went on a bender a few months after Jess died, waiting until Deanne looked asleep enough for her tastes to pull out her trusty bullet and hold it onto her clit until she came and her legs toppled out from underneath her. Sam would have known if Deanne caught her: her sister wouldn’t have shied away from making fun of her self-pleasuring, especially given the unsubtle way she got the deed done. As far as she knew, her habit was secret and safe.

Sam turned the bullet over in her hand, glancing back at Deanne with a glimmer in her eyes. “Are you gonna use it on me?”

Deanne leaned back on the bed, stretching her arms out behind her and arching her back to puff her chest up—she wasn’t subtle, and Sam was struggling to keep her eyes off of her tits.

“Call me lazy, Sammy, but I wanna watch you get yourself off.”

Sam was stripped down to nothing but her socks, and she was in position on her bed: on her hands and knees, practically presenting herself to Deanne. She was already wet, slick moving down from the entrance of her pussy to collect at her slit. Really she would have been content fingering herself for Deanne, but it felt rude not to use her new toy, no matter the petty reason it was given to her; it had been too long since she made her clit completely numb.

Deanne sat behind her on the bed, and when Sam looked down between her spread thighs she saw her sister watching, her hand stroking the comforter beneath them. It wandered until she was touching the back of Sam’s thigh.

“Please don’t tell me you have some moral objection to getting off in front of me.”

Sam rolled her eyes and took the toy from beside her knee, straining her thumb until she turned the thing on. It buzzed to life in her hand, its first mode a consistent purr that she could already tell was going to feel good on her clit. She reached down in between her thighs and nestled the toy in between the cleft of her labia, pressing until the tip of the toy’s head was butting against her clit. Sam moaned softly in the back of her throat, a hum more than anything, and she dug her fingers into the comforter.

Deanne petted the backside of her thigh, her stroke moving higher and higher until she could cup Sam’s ass cheek. Her fingers wandered across the swell of her ass cheek and dug into the flesh softly, not enough to scare her into stopping but just enough to make her gasp. Sam pressed the toy harder into her clit and clicked the button to cycle through the settings: a softer, irregular thudding, a strong pulsating buzz, and finally a stronger vibration that made her hips roll.

Fuck, where’d you get this, Deanne? It’s almost as good as my wand from college.”

That one was a black silicone Hitachi, given to her on her third date with Jess just before they hooked up for the first time. Jess made her see stars with that thing, and it felt like burying the last piece of her when it refused to power on again. A part of her wondered if this one would outlive the person who gave it to her, too, but that morbid thought was quickly snuffed out when she changed the angle of the toy and wedged it downward into her clit.

Sam moaned and dropped her head forward, her chest starting to fall to the mattress. She liked to masturbate in multiple quick bursts, milking as many orgasms out of herself as she could before she felt tired or satisfied, but the former tended to come sooner than the latter. Deanne laughed softly and scooted closer on the bed, announcing her newfound closeness by kissing the dip in Sam’s back.

A shudder of arousal shot up her spine and she didn’t know how to cope with that kind of teasing. She rocked gently on her knees, trying to grind the toy against her clit and getting a very nice buzz that traveled somewhere deep inside her from the oversensitive nerve endings at the surface. Her heart reached a rabbit’s pace, quick, fluttering thumps against her ribcage that almost felt romantic.

Deanne kissed down her tailbone, flicking her tongue out to lap at her skin. “You like it, Sammy?”

She nodded as she ground the tip of the bullet into her clit, moving slick across the throbbing bud. Sam wanted to give her sister her thanks for such a strangely thoughtful gift—though one that she likely shouldn’t have been getting from a relative—but all that came out of her mouth was a soft moan. Her finger slipped and changed the speed of the bullet again: a hard, thumping pulse like the sound of her blood rushing through her veins.

“See? I’m a great gift-giver. I know just what my baby sister wants,” her voice was low, and Sam felt another shudder course through her body. It was like Deanne didn’t even have to try to be hot, she just was and Sam was eager to show Deanne just what she did to her.

While Sam rolled her wrist to aid the vibrator, her clit starting to go numb, she felt Deanne’s hot breath just above her ass. Her eyebrows furrowed, but she’d just discovered an angle that made her clit throb and she didn’t have it in her to question anything.

Then, Deanne’s tongue lapped at the cleft of her ass and Sam gasped. She arched her back quickly and tried to move her ass away from her sister’s mouth.

“What are you doing?” She panted, the vibrator still held firm on her clit.

“Never had your ass eaten before, Sammy?” Deanne tutted, grabbing her hips and spreading her cheeks to give herself access to her sister’s hole.

Sam had no room to protest before Deanne’s tongue was running up the furled entrance of her ass, long, languid licks that made Sam feel dirtier than returning from a hunt covered in blood and viscera. Something knotted up inside her, something that made her feel almost anxious as the licking continued. Sam pressed the vibrator hard against her clit, the preprogrammed vibration pounding and mingling her anxiety with a toe-curling pleasure. One of Deanne’s thumbs stroked her cheek and reassured her that she was doing well, and slick drooled out of her.

Her breath came out in harsh, short bursts and all of those mingling feelings in her core grew. Pressure built between her thighs, and she gave her clit a break by moving the vibrator down to her over-slicked entrance. She circled the tip of the vibrator around the entrance of her pussy, gathering slick on the bullet while Deanne put more pressure onto her clenched hole.

Sam slid the tip into herself, quickly hitting a wall that she couldn’t maneuver around. When she pulled it out, she saw a thin thread of slick clinging to the toy’s head. It broke when she tried to bring it closer to her face, but even from a distance she could see the toy was shiny with a thin film of slick. Deanne pressed her fingertips hard into Sam’s cheek, attempting to leave bruises and making her feel unsteady. Sam returned the toy to its proper spot between her thighs and thrust it back into herself.

She fucked herself shallowly, feeling slightly uncomfortable when the head inevitably slammed against her walls but continuing to thrust it into herself with a rapid-fire pace. It squelched in and out of her, just as Deanne’s tongue started to probe her asshole. Sam screwed her eyes shut and moved back on the toy, rocking her hips into both the vibrator and Deanne’s tongue.

“I’m gonna come,” she warned Deanne, but nothing would deter her sister. She grabbed Sam’s hips and continued to lick at her hole while Sam fucked herself silly with the still-vibrating toy. 

The pulse shuddered through her walls and found its way to her g-spot, making her whine and clench around the vibrator and Deanne’s probing muscle. Sam panted and wrenched the vibrator around until it found some purchase inside her, sliding in another quarter of an inch and sending even more vibration to her g-spot. She dropped her head, her hair falling in a curtain around her face as she felt the unstable ball of heat and pleasure deep in her core burst.

Sam moaned loudly, stopping her movement and tensing every muscle in her body as orgasm racked through her. She couldn’t tell what came just from the vibrator and what came from the knowledge that Deanne was getting familiar with her body in a way that nobody else had ever done before, but it felt wrong to exclude her sister from the equation entirely. She dropped her grasp on the toy and felt it slide out of her with an unmistakable squelching sound. When she looked down between her spread legs, she found she was still attached to the pagan toy with a long thread of slick.

Sam flopped onto the bed, detaching herself from Deanne and breathing hard. She squeezed her thighs together to milk any residual arousal out of herself and felt a cold sensation starting to spread across her asshole—Deanne’s saliva cooling on her skin.

Deanne slotted herself between her legs and stroked her arched knee, her eyes still glimmering. She grabbed the toy, soaked with Sam’s slick and still spasming. “You’ve got another one in you, I know it.”

Sam reached one hand down to trail her fingers across Deanne’s clothed thigh, imagining slotting the svelte bullet between them and grinding away until they both came. A wave of electrical heat made every one of her vellus hairs stand on end.

“Rinse your mouth out, then we’ll share it.”

Afterword

End Notes

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