♱Paring: g!p older Billie x fem!reader
Synopsis: Billie is your dad’s best friend. After one unexpected night together when you return home from college, the two of you begin a secret affair. Whenever your dad isn’t home, Billie can’t resist you—and tonight is no different.
♱Content: Smut, p in v, Unprotected Sex, Praise Kink, Dirty Talk, Degradation, Fingering, Oral Sex (r), Overstimulation,Light Impact Play, Grinding.
The arrangement became a secret rhythm—one your dad never questioned. Billie would show up like she always had, laughing with him in the living room, maybe even helping cook dinner. But the second he left for work or turned his back?
That’s when her eyes would find you across the room—dark, hungry—and she’d jerk her chin toward your bedroom door.
Sometimes it was slow: you on your knees between her legs while she lazily played with your hair. Other times it was frantic—her pinning you against a wall as soon as his car pulled out of the driveway.
And at night? She’d slip into your bed like nothing had changed since childhood... except now there were shared blankets and whispered filth in the dark.
The line between friendship and secret affair blurred so completely, it was almost funny. Your dad would call Billie "his best friend" while she secretly had you bent over the kitchen counter five minutes after he walked out the door.
At family dinners? She’d casually brush her foot against yours under the table—innocent to anyone else, but loaded with meaning for you. A smirk would curl on her lips when your breath hitched.
And if your dad ever got suspicious? Billie played it flawlessly—laughing too loud at his jokes, helping wash dishes like nothing was going on... all while planning exactly how she’d wreck you once he left.
Tonight was no different. As soon as your dad left for work, Billie grabbed your wrist and yanked you toward the stairs. The second your bedroom door shut behind you both, she spun around—pushing you onto the bed with a hunger that made your stomach flip.
She didn’t bother turning on a light. Just crawled over you in the dim glow from the hallway, her lips finding yours again as her hands tugged at your clothes impatiently.
"Fuck,"she muttered against your mouth, Been thinkin' ‘bout this all night."
Her teeth grazed down your jaw—already leaving marks where anyone could see if they looked close enough.
The sound that left your mouth was sinful Billie groaned at the sound, her teeth immediately latching onto the exposed column of your throat. She sucked a bruise right where your dad would see it tomorrow—and she didn’t give a damn.
"God, I love that noise," she growled between bites and kisses,
"Love how you moan for me like I'm the only one who ever touched you."
Her hands were rough as they slid under your shirt, peeling it off while her mouth trailed lower—down to your collarbone, then further... until she was kissing over fabric-covered breasts.
Billie wasted no time—her lips crashed onto yours again, messy and starving. One hand fisted in your hair while the other slid down to grip your thigh, hiking it up around her hip. The friction was electric, even through layers of clothes.
She broke the kiss only to yank her own shirt off in one swift motion—tossing it aside before diving back in. Her bare chest pressed against you now, warm skin on skin.
"Fuck," she breathed, "Been waitin’ too long for this."
“You’re acting like you’ve been deprived for months,” you said between shallow breaths
Billie actually laughed—a low, throaty sound—before nipping at your jaw making you gasp.
"Babe," she said, dragging her lips up to your ear. "It’s been two days since I had you. That’s a lifetime."
Her hands slid under the back of your bra, popping the clasp with practiced ease before tossing it aside. Her mouth immediately latched onto one bare breast—sucking hard enough to make you arch into her.
"You think I can go that long without tasting you?"
Billie's touch was possessive, worshipful—like she was rediscovering every inch of you. Her lips trailed from your breast to the other, her tongue flicking over your nipple before she sucked that one too.
Between kisses and bites, she mumbled against your skin:
"Two days too fuckin’ long."
Then her hand slid down—past the waistband of your shorts —and cupped you through fabric. The groan that escaped her? Pure sin.
A soft whimper slipped past your lips as you instinctively pressed closer to her hand. ‘Please…’ you breathed, your voice barely above a whisper.
Billie’s breath hitched—your whimper, the way you ground into her palm like you were desperate for it, sent a jolt straight through her. Her fingers pressed harder, teasingly slow.
she hissed, "You’re so damn needy tonight ."
And kissed you again—deep and filthy—while her other hand worked. Her fingers slipped beneath fabric to find bare skin.
A smirk curled on Billie's lips as she felt how wet you already were:
"Knew my baby needed me."
Billie didn't waste another second—her fingers slid lower, dipping beneath the lace edge of your panties. The first brush of her touch there had you jumping, a gasp tearing from your throat.
"god," she muttered, voice thick with want, "You're so fuckin' wet for me."
She kissed you again, swallowing every moan as her fingers moved in slow circles—teasing at first, then pressing more insistently. Her thumb grazed over that perfect spot while two fingers slipped inside.
Billie's fingers curled just right, and the second she did, your back arched off the bed—your whole body tensing as a moan ripped from you. She loved that sound. Loved how responsive you were to her touch.
"Look at you," she murmured, watching your face as she worked you, "So pretty when I make you feel good."
Her pace picked up—fingers thrusting deeper while her thumb kept rubbing circles on that sweet spot.
A soft moan escaped your lips, and your eyes fluttered shut. "Mmm," you breathed, the sound laced with pleasure as her touch intensified.
The rhythm became more insistent, each stroke sending shivers of delight through your body. "Oh, god," you gasped, your voice trembling with each thrust. You arched your back, your hips bucking against her hand, as you surrendered to the wave of sensations washing over you.
Billie watched you unravel beneath her, mesmerized by the way your chest rose and fell, how your lips parted on gasps. She slowed her fingers just enough to torture—drawing out every second of pleasure until you were squirming.
"Tell me," she demanded in a whisper,"Tell me who's got you like this."
Her thumb pressed down harder—relentless—as she leaned in to kiss along your jawline. Her breath was hot against your skin:
"Who makes you feel this good?”
A whimper escaped your lips, turning into a soft whine. "Y-you," you managed to choke out, the word barely audible. Billie's fingers thrust faster on purpose, adding a third finger to the mix.
Billie's smirk was vicious—she’d been waiting for that answer. The second it left your lips, she sealed her mouth over yours in a searing kiss, swallowing your whimpers as her fingers picked up the pace.
"Damn right," she growled against your lips, "And I'm not stoppin' until you're sobbing my name."
True to her word, she doubled down—fingers curling deeper with every thrust while her thumb pressed firm circles.
Billie didn't let up— not for a second. Her fingers were relentless, her rhythm perfect—hitting that spot inside you over and over until your thighs started trembling around her.
She watched your face with dark, hungry eyes—every flicker of pleasure, every gasp sending heat straight to her core.
"C'mon," she coaxed in a rough whisper, "Let go for me. Wanna feel you clench on my fingers."
Her free hand slid up to grip your hip—keeping you right where she wanted as the coil in your stomach tightened unbearably.
Your body coiled tighter, your breath coming in short, shaky gasps—so close. Billie saw it the second you tipped over the edge: your eyes fluttered shut, a whimper caught in your throat.
A wave of pure bliss crashed through you as you shattered , back arching off the bed while her name spilled from your lips like a prayer. Billie didn’t stop—not even when you clenched around her fingers, not even as aftershocks wracked through you.
She kissed them away—every whimper, every shudder—with slow, worshipful presses of her lips.
Billie pulled her fingers out, a whine escaped your lips at the sudden emptiness. She sucked her fingers clean, her pupils blown wide with desire as she leaned back into the bed, tugging you on top of her. You straddled her, feeling desperate as you began to grind against her clothed thigh,
Billie groaned, the friction of your hips grinding against her sending sparks straight through her. Her hands immediately found your waist—guiding you, encouraging that movement as she bit down on her lower lip.
"Fuck," she hissed, "You feel so good like this."
Her nails dug lightly into your skin as you rocked against her thigh—the fabric between you doing nothing to dull the sensation.
Billie’s breath came in ragged bursts—every roll of your hips sent heat licking up her spine. The dampness soaking through her jeans? Maddening. And she fucking Coveted it.
"Look at that," she rasped, eyes raking over the dark stain on denim, "My good girl makin’ a mess."
Her grip tightened, urging you to move faster—harder. “What would your dad do if he saw how his lil girl was grinding on his best friend, huh? Would he be proud of how naughty you're being for me?" Billie purred, her words a mix of praise and degradation that sent shivers down your spine.
Billie’s smirk turned downright filthy as she felt how slick you were through the fabric. Her hips lifted slightly off the bed—meeting your movements with a slow, deliberate roll of her own.
"Goddamn," she muttered, "You’re so fuckin’ wet for me."
She loved this—the way you chased your pleasure on top of her, how desperate and messy it got. One hand slid up to tangle in your hair while the other squeezed your ass, urging you to grind harder.
"And I haven’t even fucked you properly." she teased breathlessly,
The sudden pressure against her clothed erection had Billie groaning—deep and guttural. Her eyes flashed with something dark, possessive, as she held you there, your hips pressed right over the thick outline of her arousal.
"Ohhhh," she breathed out in a low laugh, "He’d lose his damn mind."
Her hands squeezed your ass roughly—lifting you just an inch before slamming you back down onto that hard bulge again. The friction was electric through the fabric.
"And yet here we are," she growled, "My sweet little girl grinding on my cock like a slut."
Billie’s voice dropped to a filthy whisper, her lips brushing your ear as she spoke—each word deliberate, degrading rough grinds of her hips up into yours—the pressure perfect, maddening.
Her teeth grazed your earlobe before she added:"Fuckin' pathetic how bad you want it."
"Bet he thinks you’re just his innocent baby girl...”
Billie’s breath turned ragged—your whimpers, the way you chased friction like you couldn’t get enough, unraveled her. Her hands clamped down on your hips, forcing a brutal rhythm as she ground up into you.
"Fuck," she hissed through clenched teeth, "You’re such a desperate little thing."
The bulge in her jeans was crock hard with every roll of your hips—the fabric doing nothing to dull the heat between you.
Billie’s jaw clenched—her entire body tense with the effort of not moving yet. The way you took her so perfectly, how your walls fluttered around her... it was almost too much.
Her forehead dropped to yours, breathing uneven as she fought for control.
"Fuck,"she rasped "You’re so tight."
A beat passed—then another—before she finally pulled back slightly... only to snap her hips forward in one smooth thrust.
A low moan escaped your lips as your head tilted back, the sensation overwhelming you.
Billie set a relentless pace—each thrust deep, measured, deliberate. The bed creaked beneath you both as she pinned your wrists above your head with one hand.
Her other hand gripped the headboard for leverage—knuckles white—as she fucked into you with growing intensity.
"Look at me," she demanded, voice rough with lust. When your eyes met hers? Hers were dark, blown wide pure possession and hunger staring back at you.
Billie’s rhythm turned possessive—every snap of her hips claiming, branding you as hers. Sweat glistened on her collarbone, breath coming in short pants between kisses she stole whenever your lips were close enough.
She watched your face—memorizing every flicker of pleasure—as she angled deeper with each thrust.
"You take me so good," she groaned,"Like you were made for this."
A particularly hard grind had the headboard slamming against the wall—but neither of you cared. The rhythmic thud of the headboard against the wall filled the room, matching Billie’s increasingly frantic pace. Her breath came in ragged gasps now—her control fraying at the edges.
One hand released your wrist to grip your hip instead, yanking you down onto her with every thrust—deeper, harder.
Billie spread your legs wider with a firm grip—giving herself even deeper access, and the new angle had you seeing stars. Your hands scrambled for purchase, fingers twisting into the sheets like they were your only lifeline.
The stretch was overwhelming—the pleasure bordering on too much. You weren’t even forming words anymore—just whimpers, gasps, maybe her name slurred between moans.
Billie loved it. Loved how wrecked she could make you.
Your voice came out in a broken whimper—half-formed, barely coherent.
A particularly deep thrust punched the air from your lungs, and all you could manage was a choked noise. Your legs trembled around her hips, toes curling into the mattress as you tried to process , but there was no thinking—just feeling.
Billie smirked down at you—the picture of smug satisfaction—as she kept up that brutal pace.
Billie leaned down, her lips brushing your ear as she panted—her own breath ragged now from how hard she was working. "That’s it," she coaxed, "Just take it. Take every inch."
Her pace didn’t slow—if anything, it got meaner. Each thrust was precise, calculated to wreck you further. The slap of skin echoed in the room alongside your helpless little noises.
She could feel you clenching around her with every movement—and fuck if that didn’t make her hips stutter.
Billie adjusted—hooking your legs over her shoulders in one smooth motion, folding you nearly in half. The new angle sent her deeper, hitting a spot that made your vision blur.
You completely unraveled—clinging to her like she was the only thing keeping you grounded. Your face buried into the crook of her neck, hot tears pricking at your eyes from sheer overload.
The wet sounds were obscene—the slick slap of skin on skin filling the room as Billie pounded into you with relentless precision.
The moment your voice finally found coherence again—between gasps and whimpers—you choked out:
"Billie ,I can’t—”. Your words dissolved into a sob as another deep thrust sent sparks through your entire body. You were overstimulated, overwhelmed, completely at her mercy.
Billie’s eyes darkened—that broken little plea of yours ignited something possessive, almost feral in her. She loved how she could unravel you like this.
"Can't what?" she growled, leaning down to capture your lips in a searing kiss—swallowing any other words you might’ve tried to form.
Her hips never stopped moving—they got rougher. Each snap was deliberate now, chasing that exact reaction from you: the trembling overstimulation she knew drove you wild.
Your whole body quivered, every nerve ending sparking with too much sensation. Tears welled in your eyes as you whimpered:
The words tumbled out between shuddering breaths, raw and honest. You were trembling beneath her, legs shaking where they were hooked around her.
Billie knew you could —she’d seen you push through it before, even when you begged her to go slow . And that knowledge made her smirk, dark and knowing.
If anything? She fucked into you harder, each thrust punishing in its precision—like she was proving a point: You could take it.
Your back arched off the bed as your body screamed overstimulation—but Billie just kissed the tears from your cheeks without breaking rhythm.
Billie watched your face—the way your lips parted in silent gasps, how your lashes fluttered with every overwhelming sensation. She loved this—loved that she could push you to the edge of too much and still keep going.
Her hand slid up to cradle the back of your head, her thumb brushing away a tear as she kissed you again—softly this time, contrasting the rough pace of her hips.
"You’re doin’ so good," she murmured against your mouth, "Just take it for me."
And you did—clinging to her, letting the pleasure-pain of overstimulation wash over you. Your body adjusted, muscles loosening just enough to let Billie’s rhythm sear into your nerves like a brand.
She noticed—how your breathing evened out slightly, how your hips started meeting hers again despite the initial overwhelm. A low hum of approval vibrated in her chest.
"That's my girl," she praised, voice thick with affection and lust as she kissed down your jaw.
Billie’s breath was hot and ragged against your neck—each pant a testament to how hard she was working, how deep she wanted this. Her teeth grazed your pulse point—not biting yet, just testing.
Her thrusts stayed rough, but there was something almost reverent in the way her hands roamed your body now—like even as she fucked you into the mattress with single-minded intensity, she couldn’t stop touching you gently too.
A moan slipped from her lips as her hips snapped harder—the bedframe creaking under your combined weight.
The second you clenched around her, Billie groaned—deep and guttural, like it punched the air out of her. Her rhythm stuttered for half a second before she doubled down.
She could feel it—the way your body tensed, how your walls fluttered around her in telltale pulses. You were close. So fucking close. Billie’s pace turned frantic—chasing that edge with you, desperate to feel you come apart on her cock.
"Come on," she urged between panting breaths, "Let go for me—now." Her voice was raw with need—the command more plea than order as she felt your body coiling tighter and tighter around her.
The second those words left her mouth you came—soaking her, the bed, everything—the sound Billie made was almost pained. A guttural groan tore from her throat as she felt it: your climax clamping around her in hot, pulsing waves.
Billie’s hips stuttered—her own control snapping the second she felt you gush around her. A string of curses tumbled from her lips as her orgasm ripped through her like lightning.
She buried herself to the hilt, grinding deep as she came—pulse after pulse of heat flooding inside you. Her forehead dropped against yours, both of you gasping for air in a daze.
Billie exhaled sharply as she peeled your legs from her shoulders, gently lowering them back to the bed. Her body was still thrumming with aftershocks when she pulled out—slowly, carefully—her own release dripping between you both.
Without hesitation, her hand wrapped around herself again—stroking lazily but firmly as she milked the last few drops of pleasure.
watching her own release glisten on your skin sent a fresh wave of heat straight through her. Without thinking, she lifted her hand and smacked lightly against your sensitive cunt— making you gasp the wet sound obscene in the quiet room.
A shiver ran through you—and Billie liked it. Liked how responsive you still were, even after coming so hard.
Billie’s smirk returned—slow, wicked—as she admired the mess she’d made. Her fingers trailed through the wetness on your stomach before bringing them to her lips, tasting herself with a hum.
Then—impulsively—she leaned down and licked a stripe up your inner thigh, chasing every drop.
Her hands spread your thighs wider as she settled between them—breath warm against you before she finally dragged her tongue over your clit in one long, deliberate lick.
And it made her cock twitch all over again.
A/n:This is the part 2 of dads best friend