The next morning, Maddy woke up at six o’clock on the dot.

Her sheets were drenched from the waves of orgasm she’d ridden last night after Elliot had gone to bed. One glance at her sticky fingers was enough to confirm Maddy’s suspicions that she’d continued jilling off in her sleep. 

The salty taste of cum still lingered in her mouth, exciting her senses. It was almost enough to set Maddy off again. She fantasized about staying home and riding that peak of desire until she was a spent, raw mess tangled in the bed sheets.

But Maddy had finals. And she really needed to focus.

*****

One ice-cold shower later, and that flame of desire had been dampened to a manageable amount. Instead of focusing on Elliot, she spent the rest of her morning cramming for her pre-calculus exam. But after blazing through a dozen or so practice problems, Maddy stopped to look at the answer key and frowned. Her score was just not high enough.

At around seven-thirty, Eleanor walked into the dining room where Maddy sat hunched over her textbooks.

“That’s my little star.” Eleanor grinned at her daughter as she set about making the morning coffee.

Maddy just grunted in response, head clasped in her hands.

“Oh, don’t give yourself a headache, honey,” Eleanor tutted. “You’ll ace it as always, Madeline.”

Maddy swallowed uncomfortably. She hoped it was true.

*****

Two hours later, Maddy was halfway through her first test of the week with over half the questions still to answer. Worse still, the effects of the cold shower had all but worn off. She was plagued by intermittent flashes of Elliot’s cock plunging into her inviting mouth, making her squirm in her seat even as she tried her best to focus on the task at hand.

She kept glancing at the ticking clock which ominously counted down to her doom. But even the time pressure wasn’t enough to keep thoughts of her brother out of her head. She wondered if he had been as affected by the previous night as she had been. Had he woken up with a hard-on so thick it hurt and jerked himself off yearning for his sister? Maddy noted he hadn’t come down from his bedroom before she left for school.

The math instructor eyed Maddy as she shifted restlessly. She just averted her gaze and did her best to stare down at her test. But she barely saw the packet of paper, just the image of her brother moaning as he unloaded his seed into his own sister. Fuck! Get a grip, Maddy!

Discipline had never been an issue before her obsession with Elliot. Not before she’d nurtured that dark desire and let it grow and fester as it had over the past few weeks. She’d always been able to separate her sexual desires from her life when required. But now… Maddy was genuinely afraid she hadn’t spent enough time studying recently. It was starting to sink in just how much time over the past month she’d spent teasing, lying, and manipulating. All just to get a taste of brother-cock.

Maddy let out a sigh, letting her pencil work almost automatically across the page. I’m just getting in my own head, Maddy decided. I have to be.

It seemed like no time at all had passed before the bell rang and Maddy had to turn in her test. For the first time in her high school career, Maddy was unsure whether she’d passed.

*****

“What the hell, Madeline?!” Eleanor’s normally pretty face was stretched taut, mouth agape in horrific disbelief. “Can you please explain how this could have happened?”

Maddy just sank into the couch, staring at her toes, her face red with shame.

“Some of these finals you barely made a C grade on! I mean, what happened to you?!”

“I know, Mom.”

“Then you know how big of a deal this is!” Eleanor sighed, shaking her head in disbelief. “Your scholarship to Yale depended on your GPA. How are we supposed to pay for that now?”

“I-I don’t know.” Maddy’s voice was barely louder than a whisper. She had never felt so out of control before.

Eleanor just made a noise with the back of her throat as she gave her daughter a long, hard look.

“You just had to not screw up this week. One job.” With that, Eleanor strutted out of the room, leaving Maddy to melt into the couch in defeat.

The remainder of the school week after Monday’s pre-calculus final had been similarly disastrous for Maddy. Inability to focus plagued her. And intrusive thoughts about Elliot made her almost unbearably horny when she was supposed to be taking her exams.

To make it worse, Elliot had avoided her all week. She’d barely even seen a glimpse of him. Between him taking dinner in his room or coming home late after everyone else had gone to bed, they’d been in the same room only once or twice in the past week, and even then for no more than a few seconds.  It was all too convenient to be a coincidence. And it drove Maddy crazy wondering what Elliot’s motives were for avoiding her, especially after the experience he’d had in her mouth.

By the time Friday rolled around, Maddy was more frustrated than ever, and she knew her exam performances were dipping. Still, Elliot found ways to avoid his sister. And Maddy was starting to wonder if something was wrong with her.

When the grades came in on Saturday, Eleanor was furious, but so was Maddy. Not at her mom, not at Elliot, nor at anyone else. She was furious at herself, sure that she’d managed to go and ruin her own life.

For what? A childish, incestual fantasy?

I’m a loser.

Maddy sank further into the couch, unable to summon the willpower to move her body even a single inch. Despair overtook her and she cursed the fact that there was still an aching warmth in her core, yet to be satisfied.

I’m just a sad, stupid, little slut.

Her mom probably thought so. Maddy could tell by Eleanor’s tone of voice that Maddy’s “boy trouble” from earlier that week was going to come up again. Elliot definitely thought his sister was a slut, at least subconsciously. Somehow, Maddy was the last person to truly see the truth about herself.

“Maddy? What’s wrong?” Elliot’s soft, deep voice echoed from across the room. He stood at the door and unslung his backpack, his face shadowed with concern.

“I-it’s nothing.” Maddy stiffened, not wanting Elliot to see her in this state. “Just a long day.”

“C’mon, don’t give me that shit, Mads.” He sat down beside her on the couch, and Maddy had the sudden urge to throw herself against Elliot and hold him tight. To snuggle against his chest and sob into his shirt, hugging him for comfort. But she resisted. 

“It’s finals stuff,” Maddy admitted. “I… I didn’t do so well.”

“What?” Elliot looked genuinely confused. In all his life, Maddy had always been the academic superstar. That was simply  a given. “I’m sure it can’t be that bad.”

Tears sprung to Maddy’s eyes now as she shook her head and said, “No, it really, really is. I could lose my scholarship.” 

Elliot’s eyes widened. “To Yale?” Maddy nodded and Elliot settled into the couch with a low sigh, swinging one arm up onto the back. “Sheesh.”

“I-I don’t know what’s wrong with me…” The floodgates were open now. Tears flowed freely down Maddy’s face, bleeding through her mascara. “I messed up big time, El.”

“Hey, hey,” Elliot stammered. He awkwardly brought his hand to her sandy hair, stroking it in a comforting way. “It’s going to be okay, alright? It’s all going to be okay?”

Maddy nodded through blurred vision. She didn’t believe him, but she did not want that stroking hand to leave her hair. The steadiness and comfort of her brother doing something as simply as stroking her hair… It felt divine.

“Say,” Elliot said, looking conflicted. “You still wanna do that movie night we talked about? Hang out just the two of us? It might help take your mind off things.”

Wiping away her tears, Maddy stared up at her brother’s face glumly. Warm, green eyes stared back at her, his brow knitted with concern. There wasn’t a trace of that unadulterated lust and desire that had overtaken him when he’d snuck into her room earlier that week. There was just genuine brotherly concern.

“Yeah,” Maddy said. “I’d like that.”

Elliot smiled, brushed away a lock of shaggy brown hair, and put on their favorite DVD to watch together: Heathers.

Minutes later, and Maddy’s tears had dried. She was actually laughing, feeling cozy and comfortable next to her brother for the first time in a long while. 

“I knew you always had a crush on Veronica,” Maddy said, clutching Elliot’s arm playfully.

“Like you weren’t alllll over Jason Dean.” Elliot smirked.

Maddy just laughed as she caught her brother’s eye. The moment felt good. It felt like the kind of thing that might be needed for Maddy to finally get over her silly sexual infatuation. 

This was definitive proof they could still just be siblings, hanging out together. They could both pretend that all the sexual stuff between them had been the fault of intoxication or some drug. Now, there was none of that between them. No sexual tension, no romance, just pure, good sibling bonding.

That was why it took Maddy by complete surprise when Elliot’s lips crushed against her own in a passionate kiss.

Maddy let out a tiny yelp, part shock and part delight at the touch of her brother’s lips against her own.

All of her scheming and manipulation could not have prepared her for this moment, for the savage way in which Elliot grabbed her waist, pulling the lithe body of his sister against him. She was a mere doll in his clutches. His greedy hands roamed her curves, squeezing and tugging at Maddy’s body in all the places that made her squirm. 

She couldn’t help but moan when Elliot slipped his tongue into her mouth, forceful and demanding. She melted beneath his touch, her entire being tingling with desire, fighting Elliot to get a taste of him for herself. 

It took all of Maddy’s willpower not to shriek Elliot’s name. She yearned to demand that he fuck her right then and there on the couch, just like she’d fantasized about so many times before. All these silly walls they’d built up between them, preventing either of them from fully succumbing to lust for their sibling, were crumbling. Maddy wanted them gone for good.

“Elliot,” Maddy finally breathed as her brother came up for air. “I…” But she found herself without words.

The air was tense between them, thick with the smell of arousal. Elliot had pressed himself against his sister such that he was practically sitting on a prone Maddy, staring down at her with such an intense, hungry gaze that it made her shudder. She could feel that wonderful hardness stabbing at her thigh, begging for any sort of friction. She moved her leg subtly, and even through his pants, she could enjoy the feeling of her brother’s cock twitching along her skin.

“Shhh…” Elliot breathed, raising a wary glance towards the hallway. 

Eleanor was probably working in the office, and Stephen in the garage. Most days, they didn’t come back out until dinner time. But even so, the risqué nature of their position sent Maddy’s heart pounding. One stray moan, let out too loudly in the throes of incestual lust was all that it took to damn them.

Returning his attention to his sister, Elliot’s gaze raked down her body, taking in her peaked breasts and lingering where her skirt had ridden up to reveal soft, pale thighs. His face was flushed with lust, and there was something else in his eyes that Maddy couldn’t quite place. She’d seen him lust for her before, but there was something different in him now. As if a beast that had been caged up until now had finally been released.

Slowly, without uttering a single word, Elliot’s fingers traced a teasing line down his sister’s body. He started at her lips, his fingertips curving around her delicate chin and then down her luscious neck with such a soft touch that it gave Maddy goosebumps. He trailed lower, grazing the tips of Maddy’s breast, causing her to writhe as the sensation drove her desire higher still. Lower, and lower still, Elliot drifted. Maddy bit her lip as he traced down her stomach, coming to a pause at her thigh, fingers playing with the hem of her skirt.

“El.” Maddy dared to breathe again. Somehow, she felt even more vulnerable than she had deepthroating her brother’s cock. This felt more intimate, her desire more desperate. “I-I need…” Her hips bucked upwards, straining towards Elliot’s fingers, as if to finish her thought.

The barest hint of a smile flashed across Elliot’s face, and then it was gone the next instant, replaced by a smoldering fire of lust. Elliot leaned down, slanting his lips against Maddy’s as he took in the taste of her, devouring her more ferociously than before. Maddy writhed beneath his lips, savoring the taste of cool mint and the way his tongue demanded her to open wider for him, demanded her to let him devour her essence.

Then, Elliot’s hand wandered up his sister’s skirt.

He had barely brushed his knuckles against Maddy’s soaked panties when she let out a deep moan, thankfully muffled by Elliot’s lips sucking on her’s. That delicate touch alone had been enough to send shooting sparks of pleasure into her core, pooling along with that steadily growing, aching need.

Elliot grew bolder, a single finger massaging that little mound of pleasure through a thin layer of cotton. Maddy could hardly contain herself, biting down on her brother’s lip in an attempt to contain her moans. Elliot didn’t seem to mind, letting out a guttural groan of his own as Maddy tore at his lips.

His fingers were already slick with arousal as he pulled back the band of Maddy’s panties and slid down to her entrance. Maddy bucked again, wildly, not able to tell quite where her body began and Elliot ended, just knowing that she needed him inside her. Now.

As if reading her mind, Elliot slipped a finger into Maddy’s sopping wet pussy. 

Maddy whimpered as her very core was penetrated by Elliot’s finger. It scraped lovingly against her throbbing walls, triggering that deep pleasure center that set her mind on fire. She bucked her hips against his finger, begging him to fuck her harder, deeper, to penetrate that innermost core of pleasure.

Her hands wrapped around him, pulling her brother against her as she devoured him and melted under his touch.

She needed more.

Elliot obliged, slipping a second finger into his sister’s wet cunt that sent her spasming with pleasure. She clenched around her brother’s fingers, and Elliot moaned into Maddy’s mouth as he felt her tighten around his fingers. The vibration of his moan within her was enough to send Maddy to whole new heights of pleasure, her core clenching and unclenching around the rhythmic intrusion of her brother’s fingers.

“Fuuuuck.” Maddy whispered as Elliot drew back, his other hand now gripping and kneading Maddy’s breasts with animalistic intent. “You feel so fucking good…”

Still, Elliot said nothing. He just plunged his two fingers even deeper into Maddy’s cunt, curling them in that exquisite way that made her feel well and truly filled. His other hand pinched and twirled her nipple, sending just enough sharp pain to mix with that swirling pool of pleasure, just enough pain to push Maddy past the point of no return.

“You’re mine.” Elliot finally said, his first words since they’d kissed.

Maddy gasped as she looked up at her brother, his eyes dark with lust and dark, unfettered need for his sister.

And she came. Hard.

Her legs wrapped around her brother tightly, forcing him to press against her as she squeezed Elliot’s fingers in her cunt. Her muscles spasmed and contracted over and over as she rode wave after wave of delicious orgasm to finish.

She didn’t know how much time had passed before she finally released Elliot from the hold she’d put him in. He slid his fingers out of her spent pussy, admiring the thick coat of juices that covered them. 

Maddy lay still, panting, barely able to summon the energy to keep breathing, barely able to think about anything other than those aftershocks of pleasure that still lingered.

“Mmm…” Maddy smiled lazily. “I didn’t know you had that in you, bro.”

Elliot just stared at her, his eyes still dark with desire.

“Maybe I could repay the favor…?” Maddy slipped a hand towards her brother’s erection, eager to feel her brother’s hard cock in her hands again, eager to feel it inside her. But suddenly, Elliot jumped away, his expression changing into something impassive and unreadable.

“I-I have to go.”

And just like that, Elliot ran out the door, leaving Maddy a spent and confused mess on the family couch.