Possessive Stepbrother: 1

Shared Bathroom Trap💦🫦

"Open the fucking door, Ava. I know you're in there touching yourself."

Jax's voice growled through the bathroom door, low and rough, sending a jolt straight between my legs. I froze with my hand still inside my panties, back pressed against the sink, heart hammering. I'd only slipped in here for a quick shower after dinner. Not this. Not him banging on the door like he owned the place after being gone for three years.

"Jax, go away," I hissed, yanking my hand out and fixing my shorts. "Mom and Dad are downstairs. They'll hear you."

The knob rattled hard. "They went to bed ten minutes ago. Open it before I break the damn thing."

I hesitated, thighs still slick from what I'd been doing while thinking about him. Tall, tattooed stepbrother with that cocky smirk and the same dark eyes that used to watch me too long at family dinners. He’d come back bigger, meaner, and way more dangerous.

"Fine," I muttered, unlocking the door.

He pushed in immediately, crowding me back against the counter. Shirtless, sweatpants hanging low on his hips, showing the V of muscle and the start of ink on his abs. "Caught you, little sis. Moaning my name while you played with that pussy?"

My face burned hot. "I wasn't..."

"Liar." He kicked the door shut behind him and locked it, then caged me in with his arms on either side of the sink. "I heard you through the wall. 'Jax, please.' Sounded desperate as fuck."

I shoved at his chest, but he didn't budge. "This is wrong. You're my stepbrother. We can't do this."

"Can't?" He grabbed my wrist and brought my fingers, the ones that had just been between my legs, to his mouth. He sucked them clean, eyes locked on mine the whole time. "Taste like you were thinking about me. Been waiting for me to come home and finally take what's mine?"

I shivered, a mix of shame and heat flooding me. "Jax, stop. Mom could wake up any second."

"Let her." He pressed his body against mine, letting me feel how hard he already was through his sweatpants. "You've been prancing around in these tiny shorts since I got back, teasing me. Bending over to load the dishwasher. Now you're gonna give me what I want."

His hand slid down my stomach and into my shorts without asking, fingers finding me soaked. "Fuck, Ava. Dripping like a good little slut for your big brother."

"Jax," I gasped, gripping his shoulders as two thick fingers pushed inside me. "We shouldn't. This is so fucked up."

"Yeah? Then why are you riding my hand?" He curled his fingers, hitting that spot that made my knees weak. "Say it. Tell me you've been thinking about your stepbrother's cock while you finger yourself at night."

I moaned softly, hips moving against his touch despite myself. "Yes... okay? I've thought about it. But we can't actually do this."

He laughed low and dark, pumping his fingers faster. "We already are." He pulled them out, yanked my shorts and panties down in one motion, then lifted me onto the counter. "Spread your legs. Let me see it."

I did, shame burning in my cheeks as he dropped to his knees right there on the bathroom tile. His mouth was on me instantly, tongue licking broad and hungry through my folds before sucking hard on my clit.

"Oh God," I whimpered, one hand flying to his hair. "Jax... fuck, that feels..."

"Tell me," he growled against my pussy, the vibration making me jolt. "Tell me how much better my tongue is than your fingers."

"So much better," I panted, thighs shaking around his head. "Don't stop. Please, Jax."

He ate me like a starving man, messy and relentless, two fingers back inside me while his tongue worked my clit. The sounds were obscene, wet slurps and my barely muffled moans. I bit my lip hard, trying not to cry out.

"Quiet, baby sis," he murmured, nipping my inner thigh. "Or do you want Dad to walk in and see me tongue-fucking his stepdaughter?"

The dirty words pushed me closer. "I'm close. So close already."

"Come on my tongue then." He sucked my clit hard and curled his fingers just right. I came hard, back arching, hand over my mouth to stifle the cry as pleasure crashed through me.

He didn't stop, licking me through it until I was twitching and oversensitive. Then he stood up, shoving his sweatpants down. His cock sprang free—thick, long, and rock hard, the tip already shiny.

"Jax, wait," I breathed, staring at it. "That's... you're huge."

He gripped my thighs, spreading me wider on the counter. "You'll take it. Been saving this tight little pussy for me, haven't you?"

I nodded before I could think, reaching down to stroke him. He groaned and lined up, rubbing the head through my wetness.

"Beg for your stepbrother's cock," he ordered, eyes dark with lust.

"Please, Jax. Fuck me. I need it so bad."

He thrust in deep on the first push, stretching me wide. I gasped at the burn, nails digging into his shoulders. "Too big... fuck."

"You can take it." He pulled back and slammed in again, bottoming out. "Fuck, so tight. Gripping me like you never want me to leave."

He started moving, hard and steady, the counter creaking under us. I wrapped my legs around his waist, meeting his thrusts. "Feels so good. Even though it's wrong."

"Wrong is what makes it hot." He gripped my ass, angling deeper. "My little stepsister creaming all over my dick while our parents sleep down the hall. Say it."

"I'm your stepsister," I moaned, the words turning me on even more. "And you're fucking me so deep."

He kissed me then, rough and claiming, tongue invading my mouth as his hips pounded. One hand came up to pinch my nipple through my thin tank top. "These tits have been driving me crazy since I got home. Gonna mark them later."

"Yes," I whimpered, grinding against him. "Mark me. Make me yours."

His pace turned brutal, skin slapping wetly. I was close again already, the danger and the filth pushing me right to the edge.

"Jax, I'm gonna come again..."

The bathroom door handle suddenly rattled from the outside.

"Ava? You still in there? I need to use the toilet."

Mom's voice. Right outside.

Jax froze deep inside me, a wicked grin spreading across his face as he pressed a hand over my mouth.