Fiona Gallagher leaned against the doorframe of Debbie's bedroom, arms crossed, her full lips curled into a smirk. The younger Gallagher sister was sprawled across her bed in nothing but a pair of lace panties, biting her lower lip with that infuriating mix of innocence and hunger. Fiona could see the way Debbie's fingers twisted in the sheets, the way her breath hitched when their eyes locked.
"You sure about this, kid?" Fiona drawled, pushing off the doorframe and sauntering toward the bed. "Lesbian sex isn't some fucking Disney movie. It's messy. It's loud. It's *real*."
Debbie swallowed hard, her chest rising and falling under the thin fabric of her panties. "I want you to teach me," she said, voice trembling just enough to make Fiona's stomach tighten. "I want to know what it feels like to have a woman touch me."
Fiona chuckled darkly, crawling onto the bed and caging Debbie beneath her. The heat between them was immediate, electric. "Then let's get started, shall we?" She hooked a finger under the waistband of Debbie's panties and yanked them down in one swift motion, exposing her glistening pussy. Debbie gasped, her thighs instinctively pressing together.
Fiona smirked. "No hiding, little sister. You wanted this lesson? Then you're gonna *take* it."
She didn't waste time. Fiona dipped her head between Debbie's legs, her tongue dragging up the slick folds in one long, deliberate stroke. Debbie's hips jerked off the bed, a broken moan tearing from her throat. Fiona groaned against her, the taste of her sister's arousal flooding her senses. She fucked her with two fingers, curling them just right as her mouth worked Debbie's clit in slow, torturous circles.
"F-Fiona, *fuck*—" Debbie's nails dug into Fiona's scalp as she arched into the touch, her body trembling.
Fiona pulled back just enough to smirk up at her. "You like that, don't you? Getting your pussy eaten by your big sister?" She slid her fingers free and blew a hot breath over Debbie's exposed flesh, making her whimper. "Tell me what you want."
Debbie's eyes were glazed with lust, her lips parted. "I want you to *fuck* me," she breathed.
Fiona didn't need to be told twice. She shed her clothes in record time, her own body a masterpiece of curves and muscle, before climbing back onto the bed. She positioned herself between Debbie's thighs, her own wetness dripping down her inner thighs as she teased her entrance with the head of her cock.
Debbie's eyes widened. "You—you're—"
"Horny as fuck?" Fiona grinned, pressing forward just enough to stretch her. "That's right, kid. I'm gonna fuck you raw."
She didn't go slow. With a single, brutal thrust, she buried herself to the hilt inside her sister, both of them crying out. Debbie's back bowed off the bed, her fingers clawing at the sheets. Fiona set a punishing pace, her hips snapping against Debbie's, the sound of skin slapping skin filling the room along with their ragged breaths.
"Look at you," Fiona growled, gripping Debbie's hip hard enough to bruise. "Taking my cock like a good little slut."
Debbie whimpered, her pussy clenching around her. "I—I can't—"
"Can't what?" Fiona panted, her own orgasm coiling tight in her gut. "Can't handle it? Can't *fucking come*?" She reached down and circled Debbie's clit with her thumb, applying just enough pressure to send her spiraling.
Debbie screamed, her body locking up as her orgasm ripped through her, her walls fluttering around Fiona's cock. Fiona groaned, her own release crashing over her as she buried herself deep and filled her sister up with thick ropes of cum.
They collapsed in a sweaty, trembling heap, Fiona's cock still twitching inside Debbie as they both gasped for air.
Debbie bit her lip, her eyes hazy with satisfaction. "So… was that a good lesson?"
Fiona barked out a laugh, pulling out with a wet *pop* and rolling onto her back. "Fuck, kid," she panted. "You were a *natural*."