Author's Note: Hey everyone thanks for checking out the next chapter for It Runs In The Family. Hope you all enjoy it, but please remember if this isn't your kind of thing then just skip it. Anyway please leave a review or pm me if you'd like, I really do enjoy reading your reactions to stories. This one will be a little different from the last as it's more of a set up to future parts. Also to those who've asked: this story will be roughly 2-3k words per part instead of my normal 8-11k, this is because I want to experiment with smaller bite sized parts that I can post more frequently.

Part 3

The rest of the night passed by in a crawl for three of the Loud children thanks to the excitement from earlier. Luan shared Lynn's bedroom with her since they were already there and Lucy clearly wasn't returning until her bed was cleaned. The two tried sleeping in separate beds at first with the jock taking her younger sister's but they kept looking across the room to one another. So they eventually ended up in each other's arms under red covers and thankfully found sleep not long after.

Lincoln however was having a much harder time processing what he had witnessed. He was dumbfounded by Lucy's almost total apathy towards the situation compared to his deer in the headlights reaction to walking in on his two closest older sisters having sex. Not only that but they obviously had dicks like him despite being girls. He had been excluded from the revelations of his sisters' bodies from their parents after being told of their past so he had no idea this was the case. The poor boy laid in bed for what seemed like an eternity until exhaustion took him early in the morning.

Down the hall the resident scientist of the family was sleeping soundly after having planned out her tests for the next morning. With Luan and Lynn having been so reckless with their copulation she would need to make sure they hadn't gotten each other pregnant. She and her partner had only engaged in felatio until now so she didn't know for sure if they could be inseminated given how abnormal their bodies are to begin with. It was already part of her planning to conduct these tests in general to better prepare her sisters for the future but now she had an excuse to move up the timetable.

When morning finally came Lisa was among the first to awake alongside her parents and of course Lily. She brought her little sister down to their mother for her morning feeding as normal before she would begin setting up for her evaluations. She was stopped however when she felt her mother grasp her shoulder gently to speak with her.

"Lisa, honey, we know you're too smart to sugar coat things with you or to expect things to get by you. So we know you know about Lynn and Luan's fun last night." It was here that Lynn Sr. interjected with a comment about how the whole house probably knew from all the noise they were making. Rita shot her husband a small frown at his interruption but really she agreed with him. "Anyway I just want to make sure you know we're ok with you kids expressing yourselves and your emotions. Afterall your father and I wouldn't be together if we hadn't done what your sisters did last night."

"I know mother. You have always been supportive of us despite whatever the circumstances. I'm sure the others know as well." Lisa appreciated her parents' openness but knew this wasn't the real point to her mother stopping to talk with her.

"Ok well in that case do you think you could help us? We can explain the physical and emotional effects of these things just fine but we know you're much better with the medical and scientific side of things." Rita was blushing a little at having to ask her second youngest child for help like this but it really was the best option available to her.

Lisa smiled a little at her mother's question, it seemed her parents were thinking the same thing as her. If just a little behind her. "Way ahead of you. I've already devised tests to determine whether we can procreate given our… unusual states of being. If you'd allow it I'd like to run them on all my siblings, as well as myself to make sure we all know our situations."

Rita and Lynn Sr. were greatly relieved at their young daughter's compliance and readiness to help them. They were scarred they'd have to go to their family doctor and explain that now the children were getting involved with each other. He's been very understanding but they doubted he'd take that news overly well.

The Loud parents went about waking their children to start the tests once Lisa told them she was ready. The twins were already up and playing in their room while they found Lucy in Luan's bed to the surprise of Luna who had apparently not noticed the quiet girl enter the room last night. Lori and Leni were sleeping in as usual and took a bit to wake but eventually filed down to the living room with the others. Next they went to Lincoln's room finding the boy tossing in his sleep and clearly uncomfortable, after gently waking him he apologized for what he assumed was sleeping in to late before going to join the rest. They woke Luan and Lynn last, finding them cuddling with adorable smiles plastered to their faces. The two love birds were blushing deeply and tried to make an excuse for their position but were shushed and ushered downstairs as well.

Once all the children were gathered Rita decided to get things over with as quickly as possible for everyone's sakes. Most of the kids were giving Lynn and Luan odd looks anyway so she assumed they had all figured it out, or at least suspected.

Her husband stood beside her as she explained that they would always love them no matter their choices, including who they chose to love. Luna looked slightly confused, she was out of the loop due to her habit of sleeping with music blasting through earphones stopping her from hearing the previous night's commotion. So Rita had to out her daughters to make sure everyone understood her properly. As expected the room fell silent for a moment after it was out in the open. Lori and Luna couldn't help but gawk at their younger sisters while the twins seemed almost lost.

"Oh my god mom! Why would you just tell them like that? How the hell did you even know?" Luan's face was completely red in embarrassment while Lynn was uncharacteristically silent and nervous as hell. Their siblings were all staring at them now and they were both beyond mortified.

"Girls you made enough noise to wake the neighbors. It wasn't hard to figure out." Lynn Sr. spoke now and his words caused Rita to need to stifle a laugh at his bluntness and the image of their neighbors being woken by something so lewd. "Besides Lynn didn't exactly hide her attraction to you well, it was like watching a puppy follow you around."

"Not to mention you traumatized Lincoln last night, along with messing up my bed." Lucy interrupted now, to the chagrin of her older brother as the memory of what he saw flashed in his mind.

Now Lynn was burying her face in her knees, attempting to hide from her embarrassment. Luan softened a bit at hearing about Lynn's behavior and seeing her little sister be so worked up. She sat back down and put her arm around the sporty girl to bring her close to try to comfort her, not caring about their siblings stares anymore.

"Awe that's sweet Luan, I know you two are new to this but we want you to know we're ok with it. I'm sorry that we embarrassed you but we shouldn't keep secrets in this family anymore." Rita was now kneeling next to her daughters and hugging them both.

"Sorry to interrupt but there was another purpose to this meeting." Lisa cleared her throat as she spoke to get everyone's attention. "I need to perform some tests to make sure it's safe for us to do things like this. Given our abnormalities I hope you all understand the need for this."

All the sisters blushed at the implication Lisa had made, but she was right. They needed to know what their bodies were capable of in case they ever do get partners. After a brief argument they settled on going in order by age up to Lisa's room for the tests.

Over the next several hours each sister entered Lisa's room for their evaluations until only Lily and Lincoln remained untested. The young scientist brought her little sister up to the room in her arms after explaining that even at such a young age she'd be able to tell if she had any additional abnormalities or quirks. Finally she ushered Lincoln upstairs for his own test.

Once they were finally finished they were all seated in the living room waiting on Lisa to come down and pull them aside to give them their results. But when she came into the room to pull Lori aside Lynn Jr. jumped up and spoke for the first time all morning.

"Hey! Me and Luan got outted in front of all of you so it's only fair all of us get to know what we're dealing with." Her prankster sister smiled at the brazenness of her lover's words and agreed with her. To their surprise their mother agreed as well citing that there was to be no more secrets between all of them.

Lisa sighed with a small smile at this development. She suspected Lynn would come to regret that suggestion. She began to list off each sibling in order as well as their endowments as follows:

Lori – penis length of 2.5 inches and a bust size of 32C

Leni – penis length of 8.7 inches and a bust size of 36DD

Luna – penis length of 5.8 inches and a bust size of 26B

Luan – penis length of 11.5 inches and a bust size of 30DD

Lynn Jr. – penis length of 3.2 inches and a bust size of 24A

Lincoln – penis length of 12.5 inches

Lucy – penis length of 9.6 inches and a bust size of 30B

Lola – penis length of 6 inches and no bust size yet

Lana – penis length of 6.1 inches and no bust size yet

Lisa – penis length of 7 inches and no bust size yet

Lily – penis length of 9.2 inches and no bust size yet

"All female subjects cannot produce viable sperm but are fertile as normal females, and male subject is fertile as normal." Lisa finished her evaluation list with a swell in her chest at being among the more endowed of her sisters.

Each of the siblings' faces were red in embarrassment at such intimate details of their bodies being revealed. But after a moment the information sunk in for them. Their reaction to each other varied, from all the girls struggling to look away from their brother's crotch for a moment to their utter shock at Lily's size despite being so young and obviously unable to get erect. Then they began to bicker and shout.

"I told you I was bigger than you!" Lana was mocking her twin for being smaller than her, even though the difference was almost negligible.

"Fuck Luan I didn't know you were packing a weapon down there." Luna had pulled her roommate into a playful headlock to mess with her despite the obvious blush on her face. It seemed the rocker was getting curious about her sister given the small tent that forming in her purple and black plaid skirt. Luan for her part was smiling and giggling from the playfulness and the smugness growing at the fact that aside from Lincoln she was the biggest in the family.

Lori was actually ecstatic at the news that she was the smallest in the family. It gave her hope that Bobby would take her back given she didn't have much in the way physically compared to everyone else. "Oh my god so I'm almost like a normal girl? I'm going to go call Bobby right now!" With that the eldest Loud child ran upstairs.

Lynn proved Lisa's suspicions correct as she just stood in place for a second before bursting out in frustration. "Seriously?! I'm smaller than everyone but fucking Lori? Even the goddamn baby is bigger than me?" The jock crossed her arms and sat back in anger until she was joined by her mother.

"Sweety it doesn't matter how big you are. Luan didn't have any issues with your body last night did she?" The blushing from her sporty daughter told Rita she was right. "You see? What matters is who you're with and how you treat each other, size is just in the details. Your father is only about 5 and half inches long but I love him more than anything but you kids."

"Ew mmmoooommm! We don't want to know that!" All of the girls left downstairs shouted at their mother for over sharing. Meanwhile her husband was getting a little flustered at being out done by his own children. In her mind though Rita was imaging each of her children's packages in all their glory, she meant what she had said but she omitted the fact that size makes things all the better.

"Well I did say there weren't going to be any more secrets in this family didn't I?" She couldn't help but giggle at her children's reactions to the whole situation. They were quickly opening up to each other and before too long they were asking each other about their feelings and experiences, even Lincoln had calmed down and seemingly gotten over his initial shock. Probably due in part to his new found pride in his impressive size.

However what happened next surprised even the Loud matriarch as Leni spoke up, "So does that mean me and Lisa have to tell you guys about how we kiss when we're alone and put our thingies in each other's mouths sometimes?"

Once again the room was silent and this time Lisa's face was beet red.

Author's notes extended: Thanks again for checking out part 3 of this weird story. It's not as out there as another piece of mine but it's still pretty out there compared to most of the stuff that's out there. I hope you enjoyed it but remember if it's not your thing maybe one of my other stories are, not to mention all the other great author's on here. Again please leave a review or pm me if you'd like. If you have suggestions or requests go ahead and let me know. I'm working on one suggestion now (even though it's taken forever lol).