The evening was almost over. Marge had already made sure Maggie ate before she had to drive her to a friend's slumber party and once the tired mother of three returned home she took a couple valiums as she did every night and went straight to bed. Bart had just groggily awoken from the sleep that washed over him almost immediately after his antics with Lisa that afternoon. He sat up, dragging his palms down his face. He knew straight away that his mom had been and gone to bed because all the beer bottles were missing and the television was switched off. The spiky haired boy felt a teeny bit embarrassed at the thought of his mom witnessing such carnal acts that were obviously for his viewing pleasure but that's nothing another beer wouldn't solve!
"I guess I'll have a couple of pick me up's before I go…check on Lis" he grinned as he clutched his already forming erection through his boxers.
Lisa sat at her desk wiping away drying tears from her red rimmed eyes as she tried to concentrate on her college work but nothing could take her mind off of the minutes of madness she shared with her brother earlier.
"I'm disgusting…disgusting, sick and damaged!" she repeatedly spoke in raised whispers, furious at her lack of self-control, her abnormal desires, her…herself. She had already thrown all of the items of clothing she wore during, into a corner of her room with the intent of jumping straight into the shower but the "damaged" side of her kept that from happening because the lingering scent of her brother still remained. Now in nothing but her nightgown she contemplated sleep if that were possible with the angry swarm of emotions and thoughts in her head.
"…I better try to at least get the first section of my coursework out of the way" she sighed knowing it was a futile idea.
With that said, the brainy girl moved the lamp, her only source of light closer to the paper's spread out across the desk but to her dismay, the second pen touched paper there was a knock at her door. She knew it was Bart and silently cursed herself for not locking it. Another series of gentle knocks followed when she did not answer. Knowing he would inevitably invite himself in she kept her attentive gaze on her work, continuing to procrastinate. Seconds later, the door squeaked open.
"Lis…?"
She did not answer when she heard the door shut behind him.
"I was worried you might be asleep" he said, placing his beer on top of the bedside cabinet before cautiously walking towards his sister from behind.
Lisa involuntarily flinched when she felt her brother place his hands on her shoulders.
"Sorry, didn't mean to make ya jump. What'cha working on?"
Eventually she went to reply but instead began to quiver, stray tears dotted the paper causing the little ink she used to run.
"Lis…what's wrong?"
"L-Like you d-don't know…"
"Know what?" he gently squeezed her shoulders.
"Please stop playing dumb" she managed to say with a hint of defiance in her tone.
"Let me ask you this…what's the big deal?"
"Are you kidding?! We're brother and sister you idiot!"
The girl hunched over placing her head in her hands.
"So…?"
"What do you mean so?! What we did was wrong and sick!"
"Well…did it feel wrong…did you feel sick?"
"It's not that simple Bart…"
"Why isn't it?" he said quietly with subtle seductiveness. "You know I love ya Lis…we've always been close even when we fought as kids"
"You just don't get it do you…"
"Actually I think this is one of those rare times where I do and you don't"
Lisa remained silent, not knowing what to say next whilst Bart slowly bent down until his face was dangerously close to her neck.
"…do you love me?"
"You know I do Bart…but" she uttered in a pained whisper when she felt his breath on her skin.
"Then…" he started to say as he lightly brushed the nape of her neck with his lips causing his younger sister to inhale sharply. "I'll say again…what's the problem?"
He swivelled her chair around until their eyes met. Lisa gazed up at him with a mixture of sadness, lust and desperation in a single expression. She did not even try to get up and walk away even through her brain repeatedly screamed at her to move. It was too late, once she set eyes on his naked torso and tented boxers she was a slave to her desires, her own worst enemy. Knowing she had accepted her plight, Bart placed a hand on her flushed cheek and gently wiped away a forming tear before closing the small gap between them until their noses touched. He looked down at her quivering lips and without a second thought he pressed his mouth against hers creating a maelstrom of chaotic relief between them. Lisa met him with equal force, possibly more as she wrapped her arms around his neck. After a minutes worth of frantic kissing and caressing, Lisa pulled away much to her brother's surprise.
"The bed…the bed" she breathed heavily and impatiently.
Nearly delirious with excitement he curved his hands under her butt and hoisted her out of the chair but she could not even wait the few seconds it took to reach the bed and continued to crush their lips together as she wrapped her legs around his hips. Once he reached the bedside he bent down and laid her on the bed horizontally. After reluctantly letting go of her brother, Lisa scurried underneath the covers whilst he yanked down his boxers, displaying his huge erection for her to gawp at.
"Like what you see?" he said with one of his sexy smiles, sensually stroking himself for Lisa's viewing pleasure.
"G-Get in the bed…now" she replied, literally trembling with anticipation.
He did not need any encouragement. Lisa shuffled to the edge of her bed as Bart joined her under the covers. Now laying side by side they did not waste any time in embracing and allowing their mouths to reconnect. Lisa ran her hand down his navel and literally shuddered with excitement when her fingers brushed against the wet tip of her brother's cock, causing him to involuntarily buck his hips towards her. His engorged member slid against her stomach but before he could move back Lisa quickly manoeuvred her free arm over his torso, grabbed his butt and held him in place.
"Whoa, Lis…" he managed to utter between forceful kisses. "Calm down, we've got all night" he laughed.
"N-No…" she panted. "I need you in me…now!"
"Heh, keep talking like that and I'll explode any sec"
With that said, Bart cupped the hand that was wrapped around his cock and slid it upwards until the grip was released, much to Lisa's frustration and then he edged away from her, the hand he still held was now their only contact.
"What's wrong?" she whimpered, staring at him with trepidation.
"Nothing, I just wanna try something that I've thought about a lot" he grinned.
At this point in time she would have smothered herself in treacle and acted like a pig if it meant she could experience the feeling of his cock in any of her orifices.
"Name it" she whispered, not hiding her impatience.
Bart laid on his back and asked her to straddle him but face away from him, she obliged.
"Now take off your night gown" he said seductively.
Lisa obeyed again and hastily slipped it off and tossed it on the floor. Now Bart had a perfect view of his sister's smooth behind which only increased his hunger for her. Without saying anything he placed his hands on her thighs, dragging her lower body towards him until her butt was dangerously close to his face. She knew what he wanted to do so without hesitation she brought her head down and almost became dizzy with euphoria at the scent emanating from his groin. She immediately kissed the tip, a string of pre-cum stuck to her lower lip. Eager to continue Lisa pressed her lips on the head again and slowly engulfed it, hearing a sigh from her big brother. As she let her tongue loose after managing to fit half of his rock hard member in her mouth, Bart brought her moist hole to his lips and poked his tongue into her slit, earning a muffled moan which vibrated against his sensitive head causing them both to press their groins into each other's faces.
Lisa's thrusts soon became frantic and desperate, not just the fact Bart's tongue expertly lapped at her swollen clit but because of the fact that she was actually giving herself to her big brother. The same went for Bart. He had dreamed of experiencing this for months, year's maybe. He was already close to filling her mouth as he met her thrusts with equal ferocity. She had to pull back slightly because she had a gag reflex she was not proud of, which annoyed her to no end. By now Lisa's legs were trembling as her juices flowed into Bart's mouth and trickled down his chin. Their moans increased in volume and intensity. Lisa's body, now covered in a sheen of sweat started to spasm during the multiple orgasms that controlled her. The amount of bodily fluids that poured out of his sister's moist cavern indicated to him that she was almost spent. He continued to flail his tongue wildly inside her whilst he lifted his hips off the bed forcing Lisa to take his full length before abruptly erupting in her mouth. The girl gagged a little as his seed gushed out of his head, hitting the back of her throat in the process. She tried her best to swallow everything her brother was giving her but found it to be a challenge. Just before he collapsed back on the bed, one final thrust shot out the last of his thick, sticky essence which made her gag and cough once more, causing the rest she could not swallow to come out of her nostrils.
"F-Fuck…"was all Bart managed to say at that point in time.
Lisa was momentarily speechless as she tried to catch her breath when she reluctantly released her brother's twitching member. Their rapid deep breaths were the only sounds filling the room as they laid there in a sweaty, sticky mess. After a minute or two of recuperation Bart gently stroked the smooth curves of Lisa's butt whilst gazing up at the ceiling as she rested her face against his inner thigh, not taking her eyes away from his softening organ.
"You're amazing…" he said, deciding to break the silence.
"S-So are you…" she eventually replied.
Although her body still trembled a little she clambered off of her big brother and cuddled up to him when he manoeuvred his arm in a welcoming position. Now resting her cheek between his bicep and chest as her rubbed her shoulder she felt happy and safe instead of filthy and sick. She had no idea why this sudden change in her mind had happened but right now she did not care. The girl felt two fingers gently raise her chin, disrupting her thoughts. Bart's smiling face stared down at her and the siblings shared a passionate kiss, she could taste herself on his soft lips, causing a tingle in her groin.
"Bart…"
"Hmm?"
"Do…Do you regret what we've done?"
"Haha, I should be asking you that" he grinned, tightening the hug.
Lisa closed her eyes and smiled feeling completely content.
"Bart…?"
"Yeah Lis?"
"Could you stay with me tonight?"
"Heh, I'd love nothing more"
