Hardcore with my stepbrother 5

Sia woke up sore. But not just sore — marked.

She could still feel him inside her, the stretch of his cock , the ache between her thighs that pulsed with every movement. She lay in bed staring at the ceiling and tried to convince herself it was a mistake.

He was her stepbrother. They were absolutely family now. What they had done was wrong, filthy, and the kind of thing that would destroy her mother if she found out.

Sia pressed her palms to her eyes and tried to breathe through the panic rising in her chest. She had let him take her virginity. Begged for it. Screamed his name, called him daddy while he—

“Fuck,” she whispered.

Sia dragged herself out of bed, wincing at the sharp ache between her thighs, and dressed for class. She needed to forget, needed distance, space to think without Derek’s dark eyes tracking her every move.

Downstairs, her mother was making coffee. Derek sat at the kitchen island in a tight black t-shirt that showed off every muscle, scrolling through his phone like he hadn’t destroyed her last night.

“Morning, sweetie,” her mother smiled, planting a kiss on her daughter’s forehead. “Sleep well?”

“Yeah.” Sia avoided Derek’s gaze, but she felt it burning into the side of her face, heavy and intense.

“Eggs?” he asked, his voice was casual, but there was an edge beneath it.

“Not hungry,” she murmured without looking at him, waved her mom goodbye, grabbed her bag and fled, feeling his eyes follow her all the way to the door.

—

Classes blurred together. Sia sat in the back of lecture halls with Maya, but she was barely there.

“You okay?” Maya asked, pressing the back of her palm to Sia’s forehead and checking for a fever. “You seem exhausted and a lil quiet.”

Sia sighed. “I’m fine, I’m just… yeah, exhausted.”

“Moving in did quite a thing to you… you should rest, baby,” Maya said, trailing her fingers down Sia’s hair.

“Yeah, I’ll do just that.” Sia said, but deep down, she couldn’t imagine going back home and facing Derek.

Her phone suddenly started buzzing with messages, burning a hole in her pocket. Derek had texted three times.

*You left before I could taste you this morning*

*Where are you?*

*Answer me, Sia*

Her fingers shook as she deleted the messages without responding, her stomach churning with guilt and desire. She wanted him again, and that was the problem.

She wanted him rough and demanding, wanted his hands pinning her down, his voice in her ear calling her dirty names. But wanting it didn’t make it right.

After her last class, Sia walked with her friend Maya instead of going home. “Can I crash at your place tonight?”

“Everything okay?” Maya asked.

“Family stuff,” she lied. “Just need space.”

Maya’s apartment was small, cluttered, safe. They ordered pizza, watched bad movies, and Sia almost managed to forget the ache between her legs, the way Derek had looked at her when he’d said you’re mine.

But her small illusion of peace was shattered. At 11 PM, her phone rang. Derek. She immediately sent it to voicemail, but it rang again, and again. Then the texts started.

*I know you’re avoiding me.*

*You think running changes anything?*

*I know where you are, Sia.*

Sia froze. He knows? *How?* she texted back.

*Find My Friends. Your mom added us to the family plan yesterday. I’m outside.*

Sia stared at the screen, utterly shocked. Maya was in the bathroom. Through the window, she saw a black SUV idling at the curb, headlights cutting through the dark.

She should stay inside. Should hide, should—

Her phone buzzed again. *Come out or I’m coming in. Your choice. But I’m taking what’s mine tonight, one way or another.*

Sia’s thighs clenched. God, she was wet already, her body betraying her before her mind had made a decision. She grabbed her bag and slipped out the door.

Derek leaned against the driver’s side, arms crossed, looking pissed and hungry. “Get in the car.”

“Derek, we have to stop… last night was a mistake… this is wrong—“

“Get. In. The. Car,” he pushed off the vehicle and stalked toward her, backing her against the passenger door . “You ran from me. Made me chase you.” He cupped her jaw, thumb pressing against her lower lip. “Now I’m going to remind you who this body belongs to.”

He opened the door and shoved her inside. Before she could react, he was climbing in after her, pulling her across his lap in the backseat, yanking her jeans down to her knees.

“Derek, someone will see—“

“Then be quiet,” he slapped her ass, and a stinging pain shot through her flesh. Sia yelped, more from surprise than pain. “You don’t get to run from me, Sia. You don’t get to pretend last night didn’t happen.”

He spanked her again, harder, his palm landing on the same spot until her skin burned. Sia squirmed, she was already turned on, her pussy dripping onto his jeans.

“Look at you,” he growled, his fingers sliding between her legs. “Soaked and dripping like a whore. You missed me, didn’t you? Spent all day thinking about my cock.”

“Yes,” she admitted, her voice breaking. “I’m sorry, I just… I got scared—“

He pushed two fingers inside her, rough and deep. “Don’t be scared. Be wet.” He fingered her hard, the angle brutal, his other hand gripping her hair to keep her still. “Now ride my fingers. Show me how sorry you are.”

Sia bucked against his hand, desperate and shameless. The car windows were tinted, but anyone walking by could see the rocking vehicle, could probably hear the wet sounds of his fingers pumping into her, but she didn’t care. She needed this, needed him, needed to stop thinking.

Derek pulled his fingers out and shoved her off his lap. “On your knees. Face the window.”

Sia obeyed, trembling, her hands braced against the leather seat. She heard his zipper, the rustle of fabric, then his hands gripped her hips hard enough to bruise.

“No more running,” he said, and slammed into her.

Sia screamed into the headrest, her body arching as he filled her completely. He didn’t give her time to adjust, fucking her with hard, punishing strokes , the car rocking with each thrust. He was deeper like this, hitting spots that made her vision blur, her knuckles white where she held the seat.

“Who do you belong to?” he demanded, each word coming with a thrust.

“You… Haaah!… Daddy!… please—“

“Say it!”

“I’m yours!… fuck, I’m yours… G-ghhhh… oh, oh… aah.”

He reached around and found her clit, rubbing merciless circles as he pounded into her . “That’s right. Mine to fuck whenever I want until you are dripping with my cum.”

“I… I think… ohh… G-godd… I’m gonna cum daddy!” His words sent her over the edge. Sia came with a strangled cry, her body clamping down on him, and after a few more brutal thrusts, Derek groaned, burying himself to the hilt and spilling inside her, hot and thick.

They stayed like that, his cock still pulsing inside her, her pussy still throbbing with need.

“Tomorrow,” Derek said, pulling out slowly and watching his cum drip down her thighs. “You come home. Or I find you again.”

Sia nodded softly , unable to speak, already knowing she would obey, already knowing she wanted him to ruin her like this everyday.