A life-long secret
Lisa finished one of her many exams before anybody in her class (as usual) so she was quietly informed by her lecturer that she may go home early.
"Yes!" she thought. "This'll give a chance to study in peace, away from everybody in college"
She quickly gathered her things and left the room while trying not to disturb her classmates still continuing their exams.
"Pretty sure I aced it" she giggled after exiting the room.
She got on the next bus going through evergreen terrace and once she sat down she relaxed her eyes and brain for the ten minutes it would take to arrive at her destination.
"Let's see…mom will be at work, Maggie will be at school so only Bart might be there.
Bart…he had become such a waster lately. He just lazed around the house, normally got out of his bed in the afternoon and drank when he felt like. Like father like son, as they say. Lisa felt sorry for him but not as sorry as she felt for her mother. In less than a year Homer passed away from heart failure (no surprise there) then Bart became worse, attitude and drinking wise. No wonder she found herself a job to occupy her mind and stay out of that house.
"It's only two…he's probably still asleep"
The bus stopped yards from the family house and within moments she let herself through the front door.
"Ughh" Lisa exclaimed when she saw her big brother laying on the age old sofa under a duvet holding a beer in one hand while the other was hidden from sight, seven beer bottles stood empty on the carpet.
"Hey Lis" he slurred raising the beer in the air.
She was about to reply but strange noises emanated from the television and she was shocked to see a woman with unnaturally large breasts being penetrated furiously by a well hung, well-toned guy.
"Bart! Are you watching porn?!"
"Yeahhh, so?" he replied, taking a large gulp of beer in the process.
"Ugh, at least pretend to be ashamed!" she said walking past him and entering the kitchen.
"You should be ashamed, interrupting my happy hour like this" he laughed.
Lisa did not bother replying. She just sighed as she chucked her college bag on the table before scanning the contents of the refrigerator for a snack. A light smack on her butt made her yelp in surprise. She whipped around to chastise her brother but was taken aback when she realised he was only wearing a pair of tight grey, stained boxers and he was clearly not trying to hide his concealed erection.
"I wonder how many times he's came in those today" she thought for some bizarre reason.
He comically pouted at her angry glare whilst draping an arm around her shoulder in an attempt to bring her into a hug.
"Wanna sip?" he asked, waving the bottle in her face.
"Bart…" she said pushing the beer away. "No offence but when was the last time you had a shower?"
"Dunno…a few days ago anyway"
"Don't you think you should have one?" she mumbled, her cheeks beginning to turn a light shade of red.
"Care to join me?" he winked.
"Stop being gross Bart"
Lisa lightly pushed him out of the way to go up to her room to study and to quell any…urges before they arose.
"Lis, wait"
He caught her hand before she could leave the living room.
"C'mon, sit down with you big bro" he asked as he paused the television.
She sighed in defeat when he flashed her one of his pleading looks. Triumphantly, he shuffled back under the duvet and stretched out on the sofa but Lisa sat on top of the covers, having no choice to sit across his legs. She purposely avoided his lap for her own good. They sat in an awkward silence for a moment. Bart clearly enjoyed it as she tried to keep her eyes away from the explicit image on the television and discreetly rubbed her legs together to supress…barely dormant feelings.
"So Lis, how come you don't talk to me much anymore?"
"Because you're always drunk or asleep" she replied rolling her eyes.
"Hah, can't argue with that." He finished the rest of his beer and placed it on the floor. "Don't be shy, come sit closer to me. Unless you wanna stay next to my feet"
The spiky haired boy let them protrude from under the covers and wiggled his toes.
"N-No Bart"
He sighed heavily. "I don't bite ya know. C'mon…please?"
Lisa always had a hard time saying no to her brother. She knew where this was leading because from her past experiences very drunk and very horny guys will continue to persist until all that pent up energy was released. Even knowing this she hesitantly shuffled closer to him, trying her best to arch her legs over his lap.
"This isn't very comfortable you know…"
"Lie down then…" he said suggestively.
She remained silent, tightly shutting her eyes and clutching her knees, she could already feel herself leaking.
"Please Lis, I wanna hug"
Without saying anything he lifted the edge of the covers and she reluctantly manoeuvred herself underneath until she laid out beside him and rested her burning cheek on his chest, the scent of her brother's sweat and genital essence was overpowering, she could feel herself losing control.
"You look great today" he said, bring his hand over to her quivering shoulder, his other hand stroking her back.
"Th-Thank you"
"You okay?"
"Yes, why?"
"You seem to be squirming a little" he grinned, his cock getting harder.
When she did not reply he tried his luck and cautiously slid his eager hand from her shoulder over her shirt until his palm touched the top of her covered breast.
"Bart…d-don't" she whispered, trying to maintain regular breathing.
"Don't what?" he replied cockily.
With his free hand he grabbed the television remote and pressed play, sounds of erratic moaning and grunting filled the room.
"Turn it off…"
"Nope"
Bart could tell that the little show was affecting her little sister because she could not remain still. He then pushed his luck further by moving his hand over her stomach, slid it underneath her shirt and snaked it up to her bra and began to gently caress.
"Give in Lis, you want this as much as I do"
"No…No I don't" she could no longer control her breathing.
"Oh really? You must be gagging for it by now. I haven't heard Nelson sneak out of your room in ages"
At that comment she immediately lifted her head up and looked straight at him.
"How do you know about that!" she said indignantly.
"Heh, I'm not as dumb as you think. Plus…you're not too quiet when you're enjoying yourself"
At this shocking revelation her mouth opened slightly and her cheeks finally flushed bright red, she found herself speechless and mortified.
"He must be great in bed considering the noises I hear you making"
Bart was enjoying himself so much he could barely contain his laughter. There was no need for words, their eyes spoke volumes, and the noises from the woman being ploughed in the programme grew louder. Intent on closing the gap between them, Bart slowly moved his face towards Lisa's to test her reaction and to his relief she did not recoil but she did not lean forward either.
"I don't know about you…but I'm about ready to explode"
That's when he gave her one of his irresistible smiles that worked on countless girls in the past. She could not take it anymore. Her small breasts were heaving and she was breathing rapidly through her nose. Bart did not have to do anymore and was actually taken by surprise a little when Lisa initiated their first kiss. She desperately pressed their lips together, the animal inside her had been unleashed. He tasted of stale beer but she was used to that with Nelson so she did not care, her tongue flailed wildly across his lips until he allowed her entrance. Whilst they were exploring each other's mouths, Bart shifted his sister's body so she rested on top of him and purposely lifted his hips so his raging hard-on pushed against her sensitive area being blocked by her and knickers.
"Not for long" he thought, enjoying the short gasp of breath he earned from his actions.
Unfortunately they both had to breathe at some point and reluctantly parted lips, a string of drool kept them linked until Lisa sat up and looked down at her sexy brother with lust and anguish.
"Bart…" she breathed heavily. "Th-This is sick…sick and wrong"
"…do you think we should stop?" he asked, his chest forming sweat.
"We have to…we can't do this…"
He knew he had to do something before a scrap rational thought returned her to reality.
"Okay…fair enough" he lied.
He gently pushed her away from his lap until his tented boxers were visible and as expected she looked down. To keep her attention he shoved a hand inside the boxers and began stroking himself until a wet spot emerged through the material.
"Go on…I know you wanna see it"
She did, oh god she did. Tears began to form once she realised there was no going back, the urges had won. Lisa gripped the button on his boxers between her shaking fingers and slowly undid it, revealing her brother's penis. Air trapped inside her throat when she first set her eyes on it.
"So big…" she whispered.
"I've had no complaints" he smirked.
Lisa could barely contain herself at this point. She had not seen his penis in years. The last time was they were younger when he used to regularly run around the house naked.
"Bigger than Nelson's?"
The girl just nodded stupidly.
"Wanna touch it?"
For a moment she looked over at the television and saw the woman being face fucked by the guy's huge member, her knickers were getting damper. Hesitantly she turned her gaze back to Bart's (at least 8inch) cock and stretched out her arm until the tips of her fingers grazed the shaft.
"I'll help ya out"
He cupped his hand around hers and gently wrapped it around his length, causing him to throw his head back in ecstasy at the softness of her touch.
"Ohh, Lis…" he moaned, releasing his hand from hers. "I…I'm sorry but…I'm not gonna last too long"
Slowly the girl let her animalistic side take over and tightened her grip on him.
"Don't worry about it…" she replied, trying to sound confident.
Her brother's eyes were closed and it looked like he was mouthing profanity as she began to slide her hand up and down, pre-cum immediately trickled down her fingers. Suddenly he reached up to her neck and pulled her down, smashing their lips together. Their tongues danced and swirled in a frantic frenzy.
"F-Fuck Lis…" he barely managed to mumble against her mouth, bucking his hips in time with her wrist movement.
With her free hand she pressed three fingers against her now wet knickers and began circling harshly around her clit through the material. As she sped up her actions the siblings combined moans of satisfaction would have rivalled the sounds emanating from the television if they were not muffled from the vicious lip lock. Suddenly Bart began to moan faster and thrust himself harder into her hand until he lost it. He involuntarily released her lips and let out a series of deep groans as his seed spilled out of his twitching cock all over Lisa's hand and his stomach.
"Lis…ow…Lis wait" he sucked air through his teeth as Lisa continued her assault on his now extremely sensitive member. She reluctantly released her grip when Bart grabbed her hand and slid it off of his length. He then laid back to catch his breath whilst enjoying the view. His little sister was clearly lost in the throes of passion as she threw her head back whilst staying on his lap and moaning loudly.
"B-Bart…H-Help me…" she whimpered, still playing with herself.
"No problem" he smirked.
He moved her hand away from her knickers and snaked a finger underneath the material and eagerly entered her moist hole.
"Oh…Ohh…g-god" It was like he knew exactly where to touch. She began to grind back and forth on her brother's finger.
"Heh, you're a messy a girl" he sniggered, before sliding another finger in and thrusting them in and out in rhythm with her movements, enjoying the feeling of her wetness dripping down his palm.
"B…Bart…I'm…I'm going to…" was all she could pant before one of the most intense feelings she had experienced involuntarily made her scream repeatedly as she rode her orgasm, wildly licking her brother's cum from her fingers in the process.
Lisa was spent, she doubled over and collapsed on Bart's glistening chest completely breathless.
"Enjoy yourself?" he smirked whilst removing his slick fingers from inside her, brought them close to his lips so his tongue could finally taste Lisa's juices.
"Mmm…tasty"
"D-Don't be disgusting"
"Hah, you can't talk. You tasted me first"
"We shouldn't have done this" she said sadly now her senses started to return.
"Hey, c'mon Lis don't say that"
"This was a mistake"
Bart could hear the shakiness of her tone but before he could attempt to comfort her, she clambered off of him, ran upstairs into her room and slammed the door. He sighed heavily as he bent down and opened another beer.
"I'll prove you wrong tonight…" he said out loud before taking a sip and turning his attention back to the television.