Author's note: Hey everyone thanks for checking out my latest piece hope you enjoy it. This is potentially the first part to a new series if you guys like it. Think of it as a concept/starting point almost lol. This is of course rated M for sexual content and futa. If that's not your thing I have other pieces that do not contain that, there's also many other great writers on the site for you to check out so please no harassment over something that isn't within your personal tastes. Remember this is all just harmless fiction after all.

It Runs in The Family

(Part 1 Potentially)

Rita and Lynn Sr. were sitting in their bedroom going over the family albums and reminiscing over the memories. Their marriage has thus far been a happy one and they've been lucky to have eleven great, if a little crazy, kids. Though this happy life they now shared together was not always a guaranteed deal.

These two were not from Royal Woods originally and had only settled here because Rita's father was here. Albert was the only one that supported the two of them when they were just getting into their relationship. He did more for them in the early years then most would even dream of. Of course this resulted in him being ostracized from the family as well.

In reality this marriage was a great shame for most of the family to the point that they not only never spoke to Rita, Lynn or their children but they didn't even speak of them to anyone. They went to great lengths to act as if they had no relation to or knowledge of the Loud family unit. This was because Albert was not the first husband to Rita's mother.

Lynn Sr's father was the first husband, making he and Rita half brother and sister. The early years of their life were as normal as any other family by most standards, though as the two grew older so too did the bond between them grow stronger. Albert was the first to notice this and even went to great lengths to foster their connection.

At first he thought it was merely his daughter and step-son becoming close siblings, something any parent would be happy for, but the older they became the more obvious it wasn't that simple. His wife tried to step in whenever she thought they were being overly affectionate but he would always come between her and the kids with some excuse or rationalization.

One night when they were 17 and 15 respectively Albert walked in on the two kissing on the floor of Rita's bedroom like your average young teen couple. He scolded them over the inappropriateness of it of course, but he did so very halfheartedly. No matter what he told himself about how the world would look upon them all he could see was that his children were happy. It didn't matter who with, only that they were. It had taken him awhile to find Rita's mother and had been through his share of heartache so to him it was more important to be happy with whomever you loved then to be accepted by someone who doesn't really affect you.

So he started to cover for the young lovers as much as he could. There were a couple of very near calls over the next three years, but it wasn't until Rita's graduation night from Highschool that the game was up on the secrecy. Albert had tried to keep his wife busy downstairs while Lynn gave his younger sister her "graduation present", but the woman was impatient and wanted to see her daughter open up the gift she had gotten her. So she pushed past Albert on her way to Rita's room but stopped dead in her tracks when she swung the door open.

Before her were her own children completely nude and going at like her and Albert on their wedding night. Unbeknownst to her it was the teens' first time but that didn't really matter to the now irate woman. She screamed for what seemed like hours until everything was revealed, from the truth of Rita and Lynn's bond to the fact that Albert knew all along and was hiding it. That night the teens and their father were kicked out of their home and their lives had never been the same.

It had of course been nineteen years since then and Lynn Sr. was now sitting happily with his wife at home. That first time together had resulted in their first child, Lori, being born nine months later in a Royal Woods hospital to the confusion of the doctor and nurse present for the delivery.

Thanks to Rita and Lynn Sr being half siblings Lori had been born a little different than most girls. She had an extra little part her body, with emphasis on "little". Right above her vagina was a very small penis and sack, in fact the doctor at first declared her a boy until under inspection he found her vagina beneath. This was the first time he had seen something like this, but it wouldn't be the last.

With each new baby the Loud parents went to this doctor specifically for he was the only one they trusted with their secrets. And with each new child came the same discoveries. First Leni was born just like Lori with a slightly bigger but still tiny penis hiding her vagina but the trend didn't continue in this way through each birth.

Luna, Luan and Lynn Jr were all born the same as their older sisters but each's size differed from bigger than the last to smaller. Their parents tried to raise them to think themselves normal while also forbidding them from ever revealing their secret to anyone outside the household. They were pleasantly shocked when Lincoln was born a perfectly healthy and normal baby boy, though his older siblings were a little puzzled by this whenever they had to help change his diapers. Rita merely explained it away as the difference between boys and girls, a half-truth at least.

These days things were fairly routine in their home, though they still feared for anyone discovering their children's secrets. All ten of their daughters were this way after all and the thought of them being ostracized scared them to their core. They didn't care if they themselves were found out by the town as an incestuous couple, only that it would negatively affect their children. Now that most were old enough to know the truth of traditional gender norms they had to have an awkward conversation with each of them to assuage their concerns.

Some took it better than others as it helped explain their personal preferences while a couple, especially Lori, took it fairly hard. The eldest Loud broke off her relationship with Bobby out of fear of his reaction to her not being a "normal" girl. While Luna and Luan felt a degree of sense being made of their attraction to other girls, but their fear of rejection ultimately landed them in much the same position as Lori.

Lincoln was left, as always, comforting and supporting his sisters after everything was revealed to them. The only one he didn't have to console in any way was Lynn. She had always been rather proud of her body after all and didn't much care that she was a "freak" as Lori had put it. Though neither she nor any of their siblings really knew the differences between their sizes, their diaper helping days had ended with Lincoln and they were much too young to have been comparing themselves to one another at that time.

It had been months since that revelation and the sporty young girl was currently laying back in her bed, thankful Lucy was watching a horror movie downstairs with Lincoln and Lisa, browsing the web on her phone. She was fourteen and full of raging hormones so she was understandably looking at porn. She had become pretty obsessed as late with watching cartoons of girls like her, ones with dicks as well, railing into each other. A small chuckle escaped her as she imagined if that was what Luna and Luan had been imagining before finding out that they're different.

Her panties were barely clinging to her left foot as she had attempted to kick them away for more comfort, while she only wore a loose basketball jersey over her small breasts. With her free hand she slowly stroked her growing member to the virtual show inches away from her face. Each moment she watched the two characters, whom she had learned were referred to as futa, thrust into each other her cock throbbed between her fingers. Even her pussy had a pleasant buzz radiating through its folds as she imagined herself dominating another futa like the red-haired girl in her hentai video.

Lynn sped up her pumping hand as the video grew in intensity until her hand was a blur, flying up and down over her shaft. It wasn't until she felt her legs grow numb with pleasure that she realized she wasn't even watching the video anymore. Instead she was visualizing herself gripping a firm rear below herself as she thrust into the tight hole with an animalistic intensity.

The more she allowed herself to fall into this fantasy the more of her imagined partner was revealed. From the gentle curve of her back to elegant outline of shoulder blades and lust bent spine to the warm brown hair cascading to hide the girl's face. As Lynn's climax approached in real life her fantasy-self gripped that brunette hair and pulled it into a makeshift ponytail in order to bend the girl's back. When her load finally shot into the air Lynn's imagined partner cried out as if she was being filled with hot liquid before turning back to look Lynn in the eye.

In that split second moment Lynn's stomach dropped as big brown eyes looked back at her within her fantasy and she heard a familiar voice. It was very clearly Luan looking back at her and whispering thanks to her.

Lynn immediately opened her eyes and shot off the bed before grabbing her clothes and rushing into the bathroom to jump into a cold shower. For a long time she tried to rationalize Luan being in her fantasy as merely a coincidence as a result of wondering about her and Luna earlier, but no matter how much she tried she couldn't get that visual out of her head. The way Luan's back bent in pleasure as she moaned to her soft brown eyes looking back at her was flooding every thought the young jock had.

Over the next few days Lynn did her best to avoid looking at Luan but failed miserably every time her older sister passed into sight. It got so bad that she started to leave the room flustered rather than potentially pop a hard-on right in front of everyone. This didn't go unnoticed like she had hoped though.

Rita and Lynn Sr had both noticed their sporty daughter's awkwardness around the jockey older girl. It reminded them of their early days, trying to hide their attraction out of fear and misunderstanding. They suspected the girl only viewed it as misplaced sexual attraction but it was easy to see that as the days went on whenever she saw Luan she would get flustered, shy and would hang off every word that came from her mouth. It wasn't in Lynn's nature to be this way, clearly she was developing feelings for her older sister. Afterall their own relationship had started from a purely physical attraction as well.

The two decided to sit Lynn down alone to have a serious discussion with her. To explain that what she's feeling isn't something to be ashamed of and that she should at least do herself the favor of taking to Luan about it. The older girl was attracted to girls after all so it wasn't entirely improbable to get somewhere in the discussion. Not to mention Lynn and Luan were already two of the closest siblings in the house before all of this started.

To their surprise, though given Lynn's nature maybe it shouldn't have surprised them at all, the sports obsessed to the initiative on her own. On a calm Friday night Lynn approached Luan in the kitchen and asked her to meet in her room in a few minutes. The jokester was a little confused at first but agreed and made her way to Lynn and Lucy's shared bedroom, passing the young goth on the way up the stairs. It seemed the poor girl was kicked out so her and Lynn could have privacy.

Once inside Luan didn't see Lynn anywhere so she stepped further into the room but jumped in shock with a yelp when the door shut behind her and locked. Turning around quickly she gasped in surprise as her face rapidly turned beet red in a cute blush. Standing in front of the door was her fit sporty sister completely naked, save her socks.

Luan couldn't stop her eyes from wondering down to her sister's already erect package. She didn't realize she was biting her lip until she noticed Lynn's smug smirk. Until now she had never thought of her sisters in such a way but right now all that was coming to mind was how sexy her little sister's tight muscled body was. The words leaving Lynn's mouth didn't even register.

To Lynn's pleasant surprise Luan wasn't putting up any kind of objection, instead her older sister slowly started to remove her clothes starting with her top. Within seconds Luan's full 30DD breasts were revealed and Lynn couldn't stop the drool from pooling in her mouth. But the real shock for the jock came when Luan's skirt and panties met the floor.

To Lynn's utter surprise and Luan's smug glee the jokester's cock easily dwarfed the formerly overconfident jock's. This wasn't what Lynn was expecting, having thought herself the largest of the family simply out of hubris really. But nonetheless, this was going to be a fun night.

Little did they know that they weren't the only siblings planning on enjoying each other's company, some were just better at hiding it than them.

Author's note extended: Sorry for the big cliffhanger guys but I need to leave you guys wanting more lol. I promise this isn't nor will be a regular thing. Like I said before this is somewhat of a concept piece so let me know if you want a continuation. Please leave a REVIEW or PM me if you'd like.