In the middle of the early morning, Lincoln laid on a therapy bed, his eyelids blackened with bags, his hair messy and disheveled, and his pants were pulled down to his ankles. The pain and discomfort kept building up when his phallic pillar he called a dick stood tall, proud and saluting the troops, as it twitched and spurted out small trickles of pre-cum from the purple head into what looked to be a small glass basin.
"Hmmmm… Refresh my memory, elder brother unit… How long did you say it was like this?" Lisa asked, diligently writing down her data on a clipboard like a therapist, as Lincoln sighed, his eyelids threatening to close yet the pain was too much to get him to doze.
"A month and a half." He muttered before he tried to pull his hair out in aggravation. "Auuugh…! I've been trying everything to cum and orgasm, but for some reason, I just CAN'T!" Lincoln exclaimed as Lisa was still writing with a hidden smile. In reality, she was drawing a picture… a badly drawn picture of herself sucking Lincoln off.
"Tell me more, elder brother~." She breathed out, unintentionally moving slightly closer to the throbbing monster cock. The sides of her mouth were slowly getting wet from her drool.
"Well, you know how I've been more… active lately, right?" Lincoln elucidated, making Lisa shiver.
"Indeed, I do. After all, you kept all of us awake for three days straight over a month ago when Stella slept over. You had quite the, as our comedic sister Luan said, a 'bedroom tango that lasted forever'."" Lisa nodded, as Lincoln blushed as he remembered the dirty looks his sisters… and mother all gave him the next morning. That morning, he couldn't recall if those were looks of irritation or jealousy.
"Well, since then I decided that in order to make sure I don't keep anyone awake again, why not just masterbate for a while? I mean, Stella didn't think it was a good idea, but she understood that I needed to do this." Lincoln explained, so lost in his tale, that he failed to notice Lisa closing and locking her door, as well as stripping down to her panties.
"Fascinating…!" Lisa giggled excitedly, as Lincoln continued.
"...but here's the thing, no matter how much I stroke, jerk, or yank, I just can't cum! No matter what! Not even blowjobs do it for me anymore! I just-! I'm at my wit's end, Lisa!" Lincoln exclaimed, then froze when he saw Lisa, now fully naked like the day she was born, and climbing onto his chest like a koala.
"Oh my~. What a fascinating tale~. If that is your problem, Lincoln, then how about I run a few… tests? Only to see something, if you don't mind~?" Lisa purred, nuzzling into his chest, as Lincoln gulped. He could only stare wide-eyed and nod his head dumbly, as Lisa crawled down to his crotch and gently kissed the tip of his swollen dick, gasping when she saw it jolt up and sling a bit of pre-cum onto her face.
"Mmmmm~! Oooh~. It's only pre-cum, but it's so thick like peanut butter~…" Lisa moaned, as she whipped it off her face and gently sucked her fingers. The young boy could only stare in awe at Lisa's tongue work, making him throb harder. Looking closely at Lincoln's dick Lisa noticed at the very base of his shaft he had a rather large and swollen bulge, the sight of which made her smirk. 'Excellent…it's all going according to plan~! Time for phase two!' Lisa thought excitedly, while Lincoln seemed to marvel at her poker face.
'Wow… she must be taking this very seriously. Thank you, Lisa!' Lincoln smiled inwardly, before he heard her clear her throat.
"Lincoln. I found the issue: it seems your dick has a massive cum blockage inside of it." Lisa explained almost joyously, as Lincoln gave a confused look.
"Wait… a blockage?" He said as she nodded.
"Indeed! A blockage!" She reiterated. "With that now said, I shall take it upon myself to get rid of it!!" Lisa proclaimed. Before Lincoln could object to this, he gasped, then gave a deep surprised moan as he felt Lisa engulfing his dick into her mouth. The immediacy of the sudden blowjob caught him off guard, and it made him writhe and shiver when she gave loud audible slurps all over his cock. Instantly, he could feel her throat constrict and wrap itself around his dick, massaging it in ways unknown to experts.
"Fuck! How are you so good at thiiiis??? Lisa!!" Lincoln moaned, crying out from the numerous jolts, as Lisa eagerly and happily bobbed her head on his dick. Inside, she used her tongue to lick and savor his pre-cum, massaging the poor stressed cockhead. Flicking it gently with the tip of her tongue, Lisa smirked inwardly when Lincoln throttled his head back at that sudden feeling of tension.
'I've been waiting months for this!! And it feels better than I hypothesiiiiized~!!!' Lisa roared in her thoughts with sexual heat, feeling the blockage on the front of her lips. Excitedly, she could feel the blockage in his dick constantly moving up and down with her blowjob, as if it wanted to move, but was unable too. Lisa soon stopped sucking, backing away and releasing the angry cock with a loud wet 'POP'.
"Hmmmm, sucking you off isn't enough, as you have said…! We need more stimulation, one I am only happy to oblige~!!" Lisa snarled with glee, as she climbed on his body, grabbed his dick with both of her tiny hands, hover her virgin pussy overtop his enraged cock, and slammed down. "GGGGGHGHGGGGGGGHHHHKKKK~!!" Lisa felt her entire processes inside her mind shut down, as she spasmed from her first real penetrating intercourse, apart from her practical dildo exercises.
"OUUUUGHH FFFFFFUCKING SHIIIIIIT~!!!!!" Lincoln yelled hoarsely, as he gasped from feeling his entire dick engulfed by Lisa's small body. Noticing that her stomach was bulging out due to his dick being swallowed by her tiny womb, Lisa began to rapidly ride him cowgirl style, yelping and screaming every time she slammed back down.
"YESYESYESYESYESSSSYESYESSSSSSS~!!"Lisa's loud moans echoed through her soundproof room, gripping Lincoln tightly as she jackhammered her ass down on his cock even harder than before. Lincoln and Lisa continued their love romp, none of them noticing the vent on the wall, and a person hiding inside.
"Nghh~… Oh Lincoln~…" Lucy moaned, watching everything go down. She bit down on her bottom lip, her asscheeks quivering as a massive red dildo was shoved into her sopping wet pussy. If she were to walk, nobody would even notice it hiding inside her womb.
Back to Lincoln and Lisa, the older brother moaned with gritted teeth, enjoyed the searing feeling of Lisa riding his dick, but he wanted to go deeper. He desperately wanted to feel Lisa enveloped in his essence, and he won't take a no for an answer after coming this far. Immediately, he grabbed her by the hips, flipped the young scientist onto her back, and started to drill her through mating press.
"AHH AHHH AHHH~!! YES YES FUCK ME BIG BROTHER~!! FUCK ME~!!!" Lisa moaned like a common street whore, her eyes rolled to the back of her head, her thick glasses almost thrown off of her head.
Lincoln only kept grunting, feeling his dick pulsate and twitch, but then shuddered and opened his eyes as a sharp pain started to shoot through his crotch. "HOLY FUCK! LISA, I… I… I THINK I'M GONNA CUM!!" He screamed out, making Lisa smile wide.
"YES~! YES CUM~! CUM INSIDE~! MY BIG BROTHER IS GOING TO CUM~!! I WANT HIS BABIES~!! GIVE ME BABIES~!!!" Lisa yelled to the highest heavens, both parties nearly passing out as Lincoln felt his dick pushing out a massive load of seating hot cum. Lisa was nearly put into cardiac arrest from feeling Lincoln's blockage explode inside of her, her womb expanded like a grenade kept together, and her belly started to swell up with cum.
"YESSSSSS~!! PREGNANT~!! ME PREGNANT NOW!!!" Lisa yelled, going cross-eyed. Her body is completely claimed like a living condom, and her mind was utterly fucked stupid, as Lincoln kept filling her belly with load after load of tar-thick cum for forty five minutes straight, as he kept cumming and cumming and cumming and cumming…
'…yummy….cummies….yummy….cummies…~"
*The next morning*
"Ughhhh… My head…" Lincoln groaned as he woke up on Lisa's floor… and saw her on her bed. She laid there with her legs spread open and her pussy leaking her love juices, completely passed out like a corpse, yet her body kept twitching . However, what shocked Lincoln was the veritable round mountainous belly that was almost the size of a yoga ball, filled with nurturing life, along with twin rivers of flowing white milky liquid that came from two huge… breasts? What REALLY shocked Lincoln more was that Lisa began to leak profusely. A gushing sound was heard as if a balloon of water had popped.
"Ghh… aah~…" Soft moans from Lisa made Lincoln nervous, but was shocked when he saw something pushed OUT of her pussy. Said something was a small mop of white hair, but not one, not two, but an overwhelming TEN little girls, all of whom had his white hair and look like little Lisa clones, were being pushed out in front of him.
Finally, it became clear to Lincoln: Lisa had given birth to a batch of 3 year olds!
"L-Lisa…" Lincoln said, with a special kind of horrified at what he witnessed, as the first little girl slowly sat up and smiled. Her eyes looked at Lincoln with genuine happiness
"..Daddy~?" She moaned as the little one crawled towards him. Lincoln wanted to protest but soon all ten of them started to do the same, climbing all over his body.
"Daddy~!"
"Dada~!"
"Daddyyyy~?"
"Lisa!!!" Lincoln snapped, calling her name again as the small genius opened her eyes and gave a smile.
"That's right, girls! Daddy's gonna feed you his yummy milk until you're full to the brim~!" Lisa purrs as four of the girls held him down, jumping their bodies on his arms and legs, while the other six started to lick and kiss at his dick tending to his morning wood.
"Mmmmm daddy's milk~!" One of them moaned happily, their tongues lapping up the leftover cum and leaking precum, now dribbling down the head.
"Ghhhh~!! Stooo-AHH~!!" Lincoln struggled, before he saw Lisa get off of bed, and stood over him. He then gasped at her body… She has changed. Whether it was from the sex, or the aftereffects of his cum, it didn't matter now, as she didn't look like a child anymore. In fact, she has grown. Her body has elongated to the height of his chest, with fattened asscheeks, longer hair, widened hips and bigger breasts leaking copious amounts of milk.
"You like what you see~?" Lisa smirked, her pose rather striking and sexy, shutting Lincoln up. He could only nod in return. She then kneeled down, her wet frothing pussy and full display. "Enjoying the sensations~?" She asked again, yet he had no time to answer. Immediately, Lisa took his head and pressed it against her pussy, forcing him to taste her love juices, overflowing for him to enjoy. "Ah~! Forgive me, elder brother unit~! Mmmmph! But you see, months ago, I altered your penis with a special device to make your sperm eight times stronger and denser than before, and as I'm sure you are aware it resulted in that blockage your penis had~." Lisa explained, moaning more and more as she grinded her hips and pussy more on Lincoln's face. "But do you know why I did it~? I did this because I was curious~. Curious and intrigued and damn horny to see what would happen if the female body could give birth to a child that wasn't an infant, and as you can see, the results were extraordinary~. So extraordinary, in fact, tha-that this will revolutionize childbirth the world OVERRRR!! FUAAAHH~!!" Lisa exclaimed, cumming from Lincoln's face being railed by her pussy. Now feeling more hot and bothered, she watched as Lincoln's cock, now more accustomed to cumming a denser amount, came hard onto the faces of their daughters. They greedily ate and shared his spunk, the white seed candy to their tongues.
"O-Oh God…" Lincoln took it all in, unable to fully process it.
"My only issue is that I have yet to figure out why boys are unable to be procreated from this process... If you wish, Lincoln, you can assist me in figuring it out. We just need another test subject." Lisa spoke, looking about, before Lincoln slowly sat up, his daughters all still eating away at his dick and spunk, and sighed.
"So let me get this straight. You did an experiment on me in hopes of creating a utopia where childbirth was easier and no longer a troublesome hassle, so people could just have sex as much as they want?" Lincoln asked with a raised eyebrow, as she gave a giggle.
"You make it sound so hedonistically wrong, yet soooo fucking right~." Lisa smirked, the imagery of his words making her shiver in excitement once more. "But overall, yes~. On the plus side, this will eliminate the worry for any STD's, such as HIV, AIDS or herpes in the future, along with any form of birth defect~." Lisa explained, her reasoning and excuses now sound.
To Lincoln, it wasn't sound at all. He just facepalmed. "Lisa… Okay, firstly, you remember what Mom and Dad said, right? If you're going to experiments like this, you have to ask first. And secondly… Lucy, get out of the vent! I heard you cumming while you were inside there last night!" Lincoln barked out, as Lucy opened up the wall vent and hopped out with a blush on her face. Her crotch left a trail of juices as a red dildo dropped out of her pussy.
"Uhhmmmm… Lisa, Lincoln, are you-?"
"Auntie!!" The girls all shouted with glee, as they ran towards Lucy.
"Sigh… I should've stayed in the vent." Her last words left her mouth as she was tackle-hugged onto the floor. Grumbling, the gothic girl looked at the genius girl with a glare, while being dogpiled by all ten of her daughters. The girls all scrambled around Lucy's body, vainly trying to fight them off as they pushed her and themselves onto Lily's empty crib, where they all promptly fell asleep on top of her trapped body.
"Lucy. How much did you hear?" Lisa asked sternly, threatening her with unwanted experimentation unless she spills. Lucy couldn't really lie her way out of this, and only dropped her head, before she freed herself from the pile of daughters.
"I heard enough. Enough to know you caused our dear sweet big brother sooo much pain." Lucy said, hopping over the crib. She then hugged Lincoln and grabbed his dick, holding it like a forbidden idol. "Making his wonderful cock brutally impregnate you without his consent…! I should have wished damnation from the nether realm on you the moment you began all this…!!" Lucy snarled, feeling Lincoln's twitching in her hand like a living animal, as he gasped from feeling her touch. "How dare you, Lisa! Making Lincoln suffer!" Lucy glowered. However, her actions began to betray her words, as she pushed Lisa out the room and locked the door behind her.
"H-Hey! That's my room!" Lisa chastised.
"Only I may be the one to tend to Lincoln's visearl carnal needs~! Mmmmm, nobody else but me~." Lucy purred as she ripped off her dress and revealed she had egg vibrators attached to her nipples. "Lincoln~... Big brother~! I did as you told me! Do I get a reward now~?" Lucy asked with a purr, as Lincoln gave a dark smile. Something within him began to click, as he began to breathe heavier. He didn't know WHY Lucy enjoyed being dominated (it could explain her fascination with the demonic realm), but he just knew it was a kink she greatly loved. Naturally, he was eager to oblige her lustful wants.
"Good girl, Lucy. Had I know you did what I want, I would've fucked you with my first and hardest load." He growled in her ear, as she gave a shudder of excitement from the voice and words. The very thought of Lincoln fucking her hard and getting her instantly pregnant excited Lucy to no end. It was honestly incredibly tantalizing.
"My lord~! My god~!" Lucy moaned and whispered, before Lincoln immediately lunged, gripping her head and pushing her backwards, her legs spreading her pussy wide. She yelped, but began to buck her hips upward, until Lincoln plunged his meat rod deep inside of her awaiting cunt. "OHHHHH~! HHHHHHHNNNNGGGGGHHHHH~! AHHHHHH~!!" Lucy wailed, loving the way she was being rewarded.
"That's right, my little sex demoness~! Scream for me!!" Lincoln snarled as he nibbled on her ear, while thrusting like a madman deep inside her womb. "Scream, and let your master hear your voice!!"
"YESSSS~! YES MASTERRRRR~!! OOOOOOOOUUUUUUUUUUHHHHHHHHHH~!!!" Lucy belted out, air leaving her body every thrust, her mind submerging deeper into the incestual debauchery.
Lincoln bent Lucy over the crib, and started to pound her pussy like a dog, the shaking managed to wake the Lisalings who looked on with glee in their eyes.
"Daddy!"
"Me go next!!"
"Me too~" They all cried out with excitement, as Lucy grabbed one of them and deeply kissed her. The sounds of sloppy kissing aroused the other Lisalings, as well as Lincoln.
"God, that is so hot…! Maybe Lisa's breakthrough wasn't such a bad experiment after all~!" Lincoln felt his balls beginning to seize up, tensing tightly. His grip on Lucy became tighter and his cock bulged profusely, making Lucy scream like a beast.
"EEK~!! AAHHHHHH~!! THERE~! I want you to make me a MOTHER~!! A BROOD TO ENDLESSLY PUMP DAUGHTERS AND COCKSLEEVES FOR YOUR OWN USE~!!! DO IT~!! IMPREGNATE ME PAST THE BRIIIIM~!!!"
Lincoln didn't need to hear any more. "That's a good little sleeve~! Fine, I'll knock you up, so savor it all, Lucy~!!!" With one final thrust, he slammed his cock deep inside of her core, and came inside of the goth girl, but what shocked them both was his orgasm was not as powerful as the one he gave Lisa. It didn't Lucy fill to the brim, but they couldn't complain because it still felt amazing.
"Ohhhhh~! OOHHHhhhhhhh~... So good~." Lucy moaned, the ecstasy finally leaving her, just as Lisa kicked the door down, her eyes glowing behind the glasses.
"LUCINDA ANNABELLE LOUD!!" Lisa growled in rage at her sister, who smirked at her angry face.
"Too late, little Lisa~. Lincoln has chosen me as his brood slave better luck next time~. Ahaha~!" Lucy laughed, but that only got Lisa to facepalm.
"If you had waited until I was done explaining, then you would know Lincoln is incapable of getting you pregnant the same way he did me, due to the fact that his penis no longer has that cum blockage!" Lisa chastised, angered beyond belief, which made Lucy's smile drop.
"...W-What?"
"You heard me… I was going to use my device on Lincoln again, so he could impregnate you, but you were impatient"
"Wait, hold on! Lisa, what did I say about asking first!?" Lincoln berated, but he was ignored as Lisa reached under her bed and pulled out a small remote.
"Here is the device. When you press the button, it will and shall give Lincoln a cum blockage however in order for a blockage of the same immense power he gave me he would have to have had it inside of his penis and balls for a good amount of weeks. A month and a half at most, according to Lincoln. Not to mention that he needs to recharge, so we wouldn't be able to use it until tomorrow anyway." Lisa explained, shrugging her shoulders. Lucy only sighed exasperatedly, the only angered sigh she has ever done, before she gripped Lincoln.
"Lincoln… Big brother~! You'll do the same to me, right? You'll impregnate me like you impregnated Lisa? I want ten Lucylings… No, TWENTY… No, a HUNDRED. A hundred a good number for you? I think more would be satisfactory, but-!" Lucy began to ramble, more than she is supposed to, her imaginary future family already being planned. She suddenly became more and more erratic, giggling to herself, ready to jump his bones with impatience. However, Lincoln had to remind her that he needed time to build that up, and gently placed a finger on her lips, stopping her rambling.
"Lucy, you know the rules, and you heard what Lisa said~." Lincoln smirked, before shoving the cock inside Lucy's mouth, pulling her head down on his hyper cock and stretched her throat.
"Ghrkk~!" Lucy gagged, moaning as the cock meat went down her throat, and to her stomach, moaning at how her big brother and master was fucking her like a sleeve. She loved it when he gripped her head and kept thrusting and slamming his cock onto her lips and head, the pleasure waves echoing across her entire body.
"Mmmmmm~. Don't worry, elder brother unit~. That six week timeframe will shorten more and more until your refractory period would be no more~. Now imagine you're pumping ten babies per cumshot~. Or fifty per cumshot~. Or a hundred~. Tantalizing~?" Lisa smirked, holding and rubbing Lucy's budding A cups and fingering her wet cunt. That made Lucy and Lincoln begin to heat up more, instantly making Lincoln orgasm a normal amount of cum, filling Lucy's cheeks and her throat forced to gulp down copious strings of seed.
"MMmmmmph~!" Lucy gasped with cock in her mouth, moaning at her stomach inflating a little from her insides getting painted. Finally, after a good thirty seconds, Lincoln pulled her back, and sat on the floor, wiping the sweat off of his brow.
"Man… That'll be something to look forward to, right?" Lincoln answered Lisa with a smirk, until the door opened with a slam, an angry Rita glaring at her son.
"LINCOLN MARIE LOUD! LUCINDA ANNABELLE LOUD! LISA LANCY LOUD! THERE YOU ARE!!" She yelled, making the boy and two girls jump up and stiffened at her anger. "YOU SLEPT THROUGH AND MISSED A WHOLE DAY OF SCHOOL! WHAT ARE YOU DOING????"
"A-AHHH! M-Mom?! What are you-?!" Lincoln jumped, but Rita jerked her thumb behind her.
"NO EXCUSES! GET READY, YOUNG MAN!!" She shouted, before turning around, showing the huge dump truck of an ass, while cracking the doorframe on Lisa's room. "Gah…! They make these doors too small…"
"No kidding." Lincoln muttered under his breath, smirking. Perhaps this would be more than a good incentive to follow through with LIsa's experiment.