Chapter 8: The Breeding Game
Lindsey kept rolling her hips in a slow circle, the thin strip of lace dragging over the hard length of him through his boxers. Her hair hung down around their faces like a curtain, blocking out the moonlit room until there was only her.
"Adam," she whispered, and then corrected herself, lips brushing his ear. "I mean, Adam... it's me. Lauren."
She felt his cock twitch against her and grinned. "Look, he likes it. He always liked it when I came sneaking in here."
"Lauren," Adam said, voice rough, hands settling on her waist. "Your dad's down the hall. This is insane."
"That's why it's so hot." She sat back on his thighs and peeled the thong down her legs, tossing it somewhere into the dark. The sheer bra stayed on, her small nipples visible through the white lace, hard points he could see even without light. She reached down and shoved his boxers off his hips, and then he was bare against her, his cock heavy and flushed along his stomach, her bare cunt resting on top of it.
"Fuck," she breathed, looking down at where they touched. She rocked once, dragging her slick folds along his shaft, and shuddered. "Look what I do to him. Look how bad he wants me."
"Lindsey." His grip tightened on her waist. A warning and a plea in one word.
She leaned down, her hair spilling over his chest, and put her mouth right against his ear. Her voice dropped, went breathless and conspiratorial.
"I have a secret, big brother." She kissed the edge of his jaw. "I stopped taking my pills two months ago."
His whole body went still under her.
"Yeah." She licked the shell of his ear, slow, savoring the way his breath caught. "Two months. And do you know what I think about when I lie in bed at night? I think about you coming in here. I think about you bending your little stepsister over this bed and filling her up." She nipped his earlobe. "I think about you putting a baby in me, Adam. Your baby. Growing right here." She took his hand and pressed it flat against her stomach, low, just below her navel. Her skin was hot and trembling.
"That's not the game anymore," he said, but his hips had lifted off the mattress without his permission, his cock sliding through her wetness, and they both felt it.
"No," she agreed. "It's not a game. Not for Lauren." She lifted her head and looked at him, and for one naked second there was no Lauren at all, just Lindsey, terrified and certain at the same time. Then she was moving again, reaching between them, wrapping her fingers around his shaft and lining him up.
The head of his cock pressed against her opening and she gasped, loud and unguarded, the way she always was in this room. "Oh, God, there it is. I've missed him so much."
She sank down onto him an inch at a time, her mouth falling open, her eyes fluttering. He was thick and hot and her soaked cunt stretched around him, clenching, pulling, and she had to stop halfway just to breathe.
"Look how deep he's inside me already," she whimpered. "Look how he fills me up. Nobody else ever... Adam, nobody ever fit like this."
"Lindsey." His voice cracked. His hands found her hips, thumbs digging into the hollows of bone, not pushing, just holding on. "God, you're soaked."
"Two months of thinking about you does that to me." She bottomed out, her ass settling against his thighs, and shivered from the roots of her hair down. "He's in so deep. I can feel him in my belly."
She started to ride him. Slow at first, long drags up and deep drops down, her bra-clad breasts swaying, her inner thighs already slick and shaking. The headboard tapped the wall in a lazy rhythm. Her moans filled the room, high and shameless, one after another, each time he hit bottom.
"Harder," he growled, and snapped his hips up into her.
She cried out and broke rhythm, collapsing forward onto her hands, and then she found it again, faster now, grinding down hard on every stroke, chasing the drag of his cock against the spot that made her legs quiver. Sweat beaded along her spine. The lace of the bra scraped against his chest with every plunge.
"Tell me," she panted. "Tell me you want it. Tell me you want to come inside your little stepsister."
"You know I do." His fingers dug in hard enough to bruise. "Fuck, Lindsey, you know I want it."
"Then do it." She slammed down on him, taking everything, her voice fracturing. "Come inside me. I want to feel you pulse in me. I want you so deep I taste it for a week. Put it in me, Adam. Put a baby in your sister's tight little cunt."
The words landed on him like a struck match. He flipped his hips up into her, meeting her strokes, and the pace turned frantic, sloppy, the wet slap of their bodies filling the room. She was moaning constantly now, one continuous broken sound, her hair stuck to her flushed cheeks.
"I'm close," he warned, strangled. "Lindsey, I'm close, I have to..."
"No." Her legs clamped around him like steel, ankles locking at the small of his back, her whole slim weight bearing down so he couldn't slip free even if he tried. Her hands caught his wrists and pinned them to the mattress. "No, don't you dare pull out. Don't you dare. I want every drop. Right inside me. Please, Adam, please, I need it, I've needed it for months."
"Lindsey, I mean it, I'm..."
"Then give it to me." She ground down, circular and deep, her own orgasm starting to break over her in waves, her cunt clenching around him in hard rhythmic pulls. "Come in me. Come in me, come in me, come in me."
He broke. His back arched off the bed and he buried himself to the hilt with a groan torn out of the bottom of his chest, and he came, pulsing hard against her cervix, spurt after spurt, flooding her. She felt every throb of it and it tipped her over with him, her thighs shaking, her cry cracking into something close to a sob as she clenched down and milked him, taking everything he gave.
"There it is," she whispered, dazed, still trembling. "Look how much he likes it. Look how he fills me up."
They lay tangled, her legs still locked around him, neither of them softening. His cum was warm and deep inside her and she stayed exactly where she was, keeping it there.
Minutes passed. The moonlight crept along the floor. His heartbeat slowed under her cheek.