**Title: Forbidden Desire**

I never meant for things to go this far. But the way Zainab looked at me when she walked into my bedroom—her big brown eyes glazed with something darker than curiosity—told me she wanted this just as much as I did.

She closed the door behind her, the click of the lock making my dick throb instantly. My little sister wore nothing but a tight tank top and shorts that barely covered her round ass. Every curve of her body was burned into my mind, every forbidden thought I’d had about her rushing back like a flood.

“You shouldn’t be in here,” I growled, though my cock was already straining against my jeans.

Zainab smirked, stepping closer. “You don’t *really* want me to leave, do you?”

Fuck. No. I didn’t.

Her small hand pressed against my chest, pushing me back onto the bed. I let her, watching as she climbed onto my lap, her thick thighs straddling me. Her pussy, warm and wet even through the thin fabric of her shorts, pressed against my erection, making me groan.

“You’re such a fucking tease,” I muttered, gripping her hips.

“And you love it.”

Before I could stop myself, I flipped her over, pinning her beneath me. She gasped, eyes wide, lips parted—so fucking tempting. I crushed my mouth against hers, kissing her hard, my tongue forcing its way between her lips. She moaned, arching into me, her fingers tangling in my hair.

I pulled back just enough to yank her shirt off, revealing her perfect tits—small, pert, dark nipples already stiff from anticipation. I sucked one into my mouth, flicking it with my tongue, making her whimper.

“Fuck, Zee,” I groaned, my hand sliding down her stomach, past the waistband of her shorts, finding her soaked pussy. “You’re *dripping*.”

She bit her lip, rocking against my fingers as I slid two inside her tight cunt, curling them just right to make her gasp. “Please,” she whimpered. “I want more.”

I didn’t need to be told twice.

I stripped her shorts and panties down her legs, tossing them aside, before shoving my own jeans off just enough to free my cock. It was rock-hard, thick and throbbing with need.

Zainab’s eyes widened when she saw it. “Oh my god,” she breathed.

I smirked. “Scared?”

She swallowed, shaking her head. “No. I want it.”

I pushed her onto her stomach, pressing my chest against her back as I reached down to guide my cock between her thighs. But instead of pushing into her pussy, I nudged my tip against her tight little asshole.

She tensed. “Wait—you’re not gonna—”

“I am,” I growled in her ear, spit slicking my fingers before rubbing them against her hole. “You said you wanted more.”

She whimpered but didn’t pull away. I took that as permission.

Pressing in slowly, I felt her ass clench around the head of my cock, so tight it made my balls ache. “Fuck, Zee,” I groaned, gripping her hips. “Relax.”

She let out a shaky breath, and with one hard thrust, I buried myself inside her.

Her scream was muffled by the pillows as her back arched, her ass squeezing me like a goddamn vise. I stayed still, letting her adjust, my own body trembling with the effort not to fuck her raw right then.

“Moves,” she finally choked out, pushing her hips back against me.

Fuck yes.

I pulled out almost all the way before slamming back in, making her cry out again. Soon, I was pistoning into her, her ass gripping my cock so perfectly it felt like heaven. The wet, dirty sounds of my balls slapping against her, her gasps, the creak of the bed—it was driving me insane.

“You like that?” I grunted, slapping her ass hard, leaving a red mark.

“Yes—yes!” she moaned, pushing back onto me harder. “Don’t stop!”

I reached around, finding her clit swollen and wet, rubbing tight circles until she was shaking beneath me. “Gonna cum?” I growled.

“Yes—oh god, *yes*—”

Her body clenched around me, her ass milking my cock as she came, her moans muffled in the sheets. The way she tightened around me was too much—I thrust twice more before burying myself deep, emptying my load inside her.

We collapsed, panting, sweaty, her ass still stretched around my softening cock.

After a moment, she turned her head to look at me, a smirk on her swollen lips.

“Told you you didn’t want me to leave.”