The wave of summer heat brought with it an internet outage that swept the neighborhood into high-powered boredom. Nothing interesting was on TV. And their respective parents had stepped out to make groceries together. Sure to take their time or at least give enough of it. There was nothing else fun to do.
Marshall, lying on the neatly-made bed, arms above his head; braced against a girly princess-themed headboard, realizing just then what few times he had ever stepped foot into Elena's room since having moved in. The vanity mirror above her dresser had a trail of butterfly-shaped vinyl decals trickling along the upper right corner. Her sequined cheerleader uniform captured and reflected clean steady light from inside the closet. The bedroom was more spacious than his own with a consistent pastel color scheme that made it seem broken-off and separate from the rest of the house.
There, behind a locked bedroom door, a wet slurping noise floated through the quiet air. Having perfected her rhythm, Elena had lowered her eyelids in calm leisure. Her head bobbed up and down over Marshall's taut just slightly-sculpted abdomen. Her soft lips started by enveloping the head of the ten-year-old boy's dick before sliding down its neck in a moist sensual embrace. Her tongue slipped along the sensitive underside of his five-inch shaft, curving along the sides, exploring its unique shape and tender ridges.
With each loop Elena made up and down his erection, Marshall let out a pained-sounding moan that shuddered inside his little ribcage. His thighs twitched seemingly on their own as Elena's steamy saliva trickled like lava onto his smooth still-developing balls. That wet heat then slipped around slowly to the very bottom of his bare butt, teasing his little orifice.
Hot breaths burst from Marshall's lungs in ragged pants, helpless in his attempts to keep himself composed. Searching for a distraction, his gaze shifted to where Elena's ample rear end was naturally raised from her kneeling and bending over on the bed on all fours. Her denim shorts, with the way they were slung low over her hips, left a good inch of butt cleavage visible beneath the belt loops. He saw no sign of panties.
Elena's brown eyes rolled up to meet Marshall's. She playfully wiggled her backside at him when she noticed where the boy's eyes had landed. The brown-skinned girl sucked upward off his purplish tip then began to lick and brush across his boyhood with precise tongue strokes, moving to his nuts, following the path of veins that ended at his circumcised head. Then back again, giving his cock a warm bath all over. "I caught you staring," She singsonged.
Marshall mustered an unamused look that showed its cracks when Elena's licking showed no signs of ending. His ass clenched tight with the maddening sensation. "Whatever, can you quit teasing already? Mom and Dad could b-be home in any minute now."
"You're worried about getting caught now?" She seemed to smile at the boy even as her tongue continued sampling every inch of his cock, enjoying her work and its effect. "Aren't we just getting started?"
Marshall's hips instinctively twitched up towards his stepsister's hungry mouth. His penis gleamed wetly in her saliva, making dangerous throbs under her lingering tongue. "No… better not be." Elena wrapped her right arm under and around the middle of his thigh, keeping him locked in. Her other hand gently stroked his pale hairless set of balls.
"Uh-huh," Elena said with a vaguely cat-like expression. "Just enjoy yourself."
Elena's brown hair flowed down in soft natural curls. Her skin bore a more tan hue in comparison. Already, at age eleven, she had something of a womanly shape to her. At her chest, jiggling mounds of flesh tipped with dark dusky nipples had formed where large heaving breasts were soon to be, placing her square in the market for training bras. Further down, her plump well-rounded backside stuck out in a magnificent semi-circle beneath her lower back. On some mornings, she'd turn her back to her bedroom mirror, lift the waistband of her panties, and watch the round globes of her ample rump jiggle and bounce when she let go.
Marshall, when alongside her in public, didn't give the impression of a step-sibling or any relation at all, unlikely friends if anything. His hair came out wavy and was grown out to sit just below the ears at a deeper brown than Elena's, his was a textured syrupy brown like pecan. He had a fair complexion and ocean-blue eyes both taken from his mother's Swedish roots. Being on the school's baseball team kept him active and in good shape. That, and he enjoyed being better than average at something. Elena and Marshall hadn't gone to the same school when their parents had the two of them meet over dinner at a Mexican restaurant. Marshall didn't know how to pronounce most of what was on the menu so Elena helped him. After three years and their parents getting married, their closeness somehow ventured beyond expected approval.
It was almost five PM. Their parents had left a half-hour before. Elena's lips formed a tight seal around Marshall's glans before twisting the tip of her tongue into the open slit at the head of his cock. The boy clutched at the pillows supporting his head and let out a low guttural groan, his hips squirming a little to discourage her from drawing things out. It seemed to work. Her tongue gave identical treatment further down the single vein running underneath his shaft. Then, without ceremony, his penis came free from his stepsister's mouth with an obscene wet pop, his cock remaining rigid above his stomach after the fact. "Huh?" Marshall said despite himself.
Elena wiped at her mouth using her wrist. "How was that? Felt good, right?" Marshall's torso arched as he began to sit up. "Uh-uh-uh," Elena's palm pressed hard against one of his pectorals, keeping him flat on the bed. "That free blowjob wasn't for nothing. I gotta get my end of the bargain too, little brother." Though she was only six months older.
"Come on…"
"I'd like no complaints, thank you very much." She stripped at the waist down, unbuttoning her shorts, zipping down, and baring a chubby hairless pussy mound while Marshall only watched. She pulled them down to her ankles and kicked them off the edge of the bed. "I skipped out on panties for the occasion and I'm super wet from the blowjob so no more stalling from now." She was climbing on top of him, planting her knees on both sides of his hips. Her unexpected heaviness weighed down on him. Her searching eyes locked onto his. "You look nervous."
"Don't we need a condom?"
Elena inserted a hand between their bodies until her fingers located and wrapped themselves around Marshall's soaked erect boyhood at its base, stealing control over the appendage. "Mom and Dad ran out. I checked their bathroom this morning and couldn't find any. Or maybe they hid it somewhere. Oh well." Elena said with her fat caramel ass sitting above Marshall's cock.
Marshall quickly moved his hands and grabbed big palmfuls of Elena's lush behind to keep her from moving her hips down, incidentally kneading the ample flesh. "Wait, wait, wait, couldn't you get pregnant?"
"Yeah, I could. So don't let it out inside of me, 'kay?"
"But what if-"
"Shhh, no more talking," She lifted her ass high in the air even as Marshall's hand remained latched onto her big round cheeks. Pussy juice shone along the inside of her thighs. She carefully guided his hard cock toward the opening of her wet pussy. Before either of them knew it, Marshall's cockhead kissed her silky entrance and then began applying pressure. Her hips shifted to better accept his stiff penis. "Mmmmmm, that's it." Elena purred as her labia spread apart and made room for him. She lowered herself with patience, one hand planted at the root of Marshall's penis, making sure it stayed upright on her way down. She moved the same hand onto Marshall's shoulder just before her shapely rear end made a hearty smack against Marshall's lap.
Marshall grunted from Elena's pussy clenching almost painfully around his cock. His dick returned the favor, twitching desperately with his entire shaft lodged between her narrow slippery walls. "You're so tight."
"What did I say about talking?" Elena leaned in and kissed Marshall between his eyebrows the same way she would kiss a toddler. "Okay, ready or not, here it comes." She said, then began to bounce her ass over her stepbrother's hard cock. Her pink insides made a wet squished noise around his boyhood and following behind was a staccato slapping noise each time her fleshy behind made contact with his upper legs.
There was hardly any work on Marshall's part. With minimal work from his hips, Marshall's hot shaft pistoned smoothly through Elena's steamy moist cavern, stabbing deep through her tightness until the engorged head of his boyhood planted a light kiss at her cervix before retreating backward, bringing a nice coating of her juices out with him. Each stroke into her warm silky cunt sent a tingling wave of pleasure up his spine. He couldn't help his moaning. Despite Elena's more endowed shape, their bodies fit perfectly against each other, like a set of chairs.
Elena stared down at him with little hearts in her eyes, her fat ass moving up and down over her shoulder. "Doesn't sex feel great without a condom? So nice and relaxing." As if to prove her point, she began to speed up her pace. A loud SLAP resounded throughout the room twice every second, those hours spent cheerleading having lent her some impressive stamina.
"Uh-huh," Marshall said, feeling his voice quiver inside his throat as his stepsister's greedy pussy caressed his shaft, giving it a bear hug. His balls throbbed painfully with a desire to release but Marshall held on. The pleasure quickly became something to endure.
Still, the pair of stepsiblings continued their raw fucking, their young bodies passionately mashing against one another with primal lust. At some point, their lips met and they managed a drawn-out kiss without Elena even slowing down her rhythm. She stopped only once during their mating and it was so she could peel her shirt off and toss it over her shoulder, baring her growing tits for Marshall to play with as he liked.
After holding out for almost ten minutes, Marshall's cock made a noticeable singular throb all the way up to the reddish tip. His nuts ached inside his swollen sack. He swore he could feel the slit at the head of his penis opening just a little, readying for orgasm, so dangerously close to her unprotected womb. Firing just one long rope of potent semen past her cervical opening would be so easy. Marshall's blue eyes snapped wide open and their kiss became one-sided.
Even as he pulled away, his thighs trembled under Elena's weight, the muscles in his legs spasming from the pleasure moving in waves from his shiny dick. "E-Elena," The boy groaned helplessly. His hands squeezed onto her caramel ass cheeks to slow her down, granting him no avail against Elena's surprising strength. "Elena, that's too much!" His cock twitched angrily inside her pussy, burning hot with the urge to impregnate her hungry cunt. His impulsive side so badly wanted him to pack her womb full of white semen.
"What are talking about, too much of what? Quit squirming your hips, idiot." Elena said with a focused grin across her lip as her pace sped up even more, making the smacking of her ass against Marshall's thighs even louder.
Neither of them heard the jangle of keys coming from downstairs.
"Too fast, too f-fast… stop, it's too much!"
"Hang on, just a few more…" She counted the strokes inside her head, savoring each stroke as Marshall's cock pounded her pussy raw and hot. One. Two. Three. She paused with his dick buried balls deep inside of her. Her cheeks flushed to a deep red. His cock just felt too good pistoning through her frothy little pussy. A few more strokes wouldn't hurt. Four. Five. Marshall whined about something underneath her. Six. Seven. And eight! Elena sat her plump ass cheeks down on him, completely engulfing his shaft. Marshall had long been brought over his limit.
His balls lifted up into his body. The base of his cock twitched only once. He came hard, unaware that he was screaming in pleasure. Buried so deep, he had no trouble delivering his thick potent load directly into Elena's womb. His stepsister ground her hips against him, enjoying as much of Marshall's dick as she could. His boyhood twitched again and again and again, sending a healthy spurt of semen with every tiny throb. His screaming congealed into a long low moan as his release embed down to its final few twitches. Warm sperm seeped out from where their genitals were connected. Unbeknownst to them both, his sperm had already penetrated the protective barrier of her egg, the strongest of them soon wiggling its way inside. Marshall's eyes welled up with fearful tears staring down at the mess he made inside his stepsister.
"E-Elena…!"
She took in a breath, her eyes closed as if she were asleep. "Shhh, it's fine. You didn't mean to, did ya?" She stroked his medium-length hair even as his seed oozed down her inner thighs.
"Still…"
"I'm sure it's fine, anyway," Elena shrugged, speaking with a certain confidence that made her assurance contagious. "You know, I don't think Mom and Dad are home yet. How about just one more round? Huh? There's nothing to do."
Downstairs, inside the kitchen, Marshall's mother carried a bouquet of asparagus into the open fridge. The magnetic letters stuck to the door spelled out each of their names, sorted from oldest to youngest. Andrés. Rachel. Elena. Marshall. Each letter was slightly tilted or just a little uneven from the surrounding ones, an intentional messiness that was oddly endearing.
Grocery bags littered the kitchen island, taking up all available on the wooden tabletop, and then the seats of all four stools pulled from underneath it. Elena's father pulled two unopened tubs of ice cream from one bag, setting beside each other. A suggestive slapping sound came from upstairs, Elena's room, perfectly audible as if it were happening in front of them both. The dark-skinned man glanced at his wife, then at the ceiling. "Not going to say anything?"
Marshall's mother cleared her throat, peering inside the refrigerator, judging the amount of space they had for everything. There was the subtle uninhibited sway of her rear end then she stood up straight without turning to look at her husband. "No. Shouldn't you?"
"We should've seen it coming. No point in intervening now. Any day now, she'll wake up pregnant."
Marshall's mother tapped at her chin. "Well, there's always birth control." There was a coy smirk. "Or maybe you're secretly looking forward to all of this."
"Me? Wha- You're crazy." His wife threw a brow in his direction. He shrugged. "Maybe we both are."
In the end, they had a good laugh about it.