A.N.: As promised, here's my update, a basic outline of the Mutant Loud AU. Whether I ever get back to this is pretty up in the air; Body Issues remains my main focus for the foreseeable future, and I really only did this as a thank you for Jose Ramiro's birthday present. If there's a huge outpouring of demand for more Mutant House, I may think about doing more, but for now, this is all there is.

The Mutant House

Origins: The story began when Lisa Loud acquired a sample of alien spores from a prestigious university. The spores had been encased in a meteorite that had landed in a Central American jungle. Lisa was excited at the chance to observe extraterrestrial life, but a containment breach led to the spores infecting her older sister Lori, leading to her mutating into a unique and powerful new species. Though devastated at first, with the help of her family and her boyfriend Bobby, Lori learned to adapt to her new normal and set out to try to live her best life. Lisa, however, felt guilty for her responsibility in causing the accident and set out to find a cure for her sister's condition; unfortunately, her cure backfired and led to the entire rest of her family being infected. Now, a family of thirteen mutants has to face the challenges that come with being… The Mutant House.

All of the Louds share the following traits:

Physical mutations (visible):

Unusual skin coloration (can be virtually any color imaginable), three eyes (can be yellow, green, or blue; glow in the dark; turn red when angry; pupils are vertical; females have black markings around them); pointed ears; horns (start developing at around age six; males have larger ones), fangs; forked tongue; large, functional batlike wings; prehensile fluff-tipped tails (fluff matches hair color); two sets of arms; four fingers per hand (though they already had that, being cartoon characters :) ); two toes per foot; retractable claws on fingers and toes

Physical mutations (internal):

Bluish-green blood; two hearts (six-chambered primary, four-chambered secondary); four lungs; three stomachs; four kidneys; Liver, pancreas and gall bladder have been replaced by a pair of organs that serve the function of the other three; altered brain structure; reproductive systems are basically the same as they always were, though

Superhuman abilities:

Greatly enhanced strength (varies by age and size, though even Lily can heft a ton or two); enhanced speed and reflexes; flight (naturally); semi-invulnerability (skin is impervious to bullets and all but the most impossibly sharp blades, though they can still feel pain; immunity to human diseases/toxins); rapid healing (cuts and bruises heal within minutes, broken bones in a day; regenerating entire limbs takes significantly longer, but then people usually can't do that at all); greatly-extended lifespans (aging will slow to a crawl for all the Louds in their mid-20s); enhanced sight (their vision extends to infra-red and ultra-violet), hearing, and other senses; can communicate telepathically with each other. Each Loud also possesses a unique ability all their own that will be detailed in their own section.

Lori Loud

Code name: Locus

Skin color: Light blue

Unique power: Teleportation

Lori can teleport along a direct line of sight, and only to somewhere she can see clearly; it's near-instantaneous, but if someone or something gets in the way, she will smack into it.

Lori still attends Fairway University and still intends to pursue a professional golf career and eventually start a family with Bobby, though they may have to stick to adoption out of necessity.

Leni Loud

Code name: Zephyr

Skin Color: Turquoise

Power: Wind manipulation

Yes, yes, she's heard all the "airhead" jokes, but with the ability to summon anything from a gentle breeze to a chilling arctic blast to a tornado-force gale, you'll want to make them at your own risk.

Luckily, Leni remains the sweet, caring, if a bit ditzy, girl she's always been. She's responsible for altering all the Louds' wardrobes to suit their new bodies, and hopes to start her own line of mutant fashions if more mutants ever pop up.

Luna Loud

Code name: Kaboom

Skin color: purple

Power: pyrotechnics

Luna has the power to cause explosions, from harmless fireworks to blasts capable of denting steel.

She's found that being a mutant is one heck of a stage gimmick, and Moon Goat has leaned into it big time with outrageous costumes and effects (that Luna provides for free!). Luna has switched to one of those double-necked guitars since she finds them more comfortable to play. She and Sam are still an item.

Luan Loud

Code name: Razzledazzle

Skin Color: Yellow

Power: Illusion

Luan can generate convincing illusions that fool one or more of the senses. Besides occasional forays into crimefighting with her siblings, she uses them in her various acts (she's added a magic show to her repertoire, and adopted the latest Loud pet, Ernie the rabbit (named after Ernie Bushmiller, creator of Nancy, as part of the whole theme they have going) as part of it). Her and Benny have split, though they remain friends; she's not really looking for a new relationship right now, focusing more on her other goals. She's also been trying her hand at more serious acting roles.

Lynn Loud Jr.

Code Name: Volley

Skin color: red

Power: Can generate solid energy shapes.

Lynn tends to use her powers to create sports equipment, such as hockey sticks, bats, and balls of all sizes and shapes. She was one of the hardest hit by the change, as she's now too powerful to participate fairly in competitive sports. With that angle lost to her, she's been one of the most enthusiastic supporters of Lincoln's attempts to start a superhero team. She's also been branching out into new things to compete in that are physically intensive but aren't made unfair by her physical powers, like competitive dancing.

Lincoln Loud

Code Name: Dealer (he was going to stick with Ace Savvy but that name was copyrighted)

Skin: Orange

Power: Low-level telekinesis

Lincoln struggles with levitating larger items and prefers to deal (no pun intended) with smaller ones. In keeping with his theme, he uses things like cards, dice and poker chips as weapons, and can use his powers to throw them with unerring accuracy.

He's always dreamed of being a superhero, and at last has the power to do so and be taken seriously. Clyde is his "guy at the computer", and he's been trying to recruit his sisters to join him on his new team, the Full House. While some simply want to try to live their lives, others are more enthusiastic about it. However, when real threats arise, you know the Full House will gladly rise to the occasion.

Hilariously, although Lincoln does not, and pretty much can not, maintain a secret identity (being the only orange-skinned multilimbed mutant in the entire world) Girl Jordan has somehow managed to develop a crush on The Dealer while being utterly incapable of realizing that he and Lincoln are the same person.

Lucy Loud

Code Name: Wraith

Skin color: grey

Power: Intangibility

Some Louds were devastated by the changes in their life. Some were more positive about it. Lucy absolutely reveled in it. Fangs? Wings? Pointy ears? Grey skin? It's the closest thing to being a real-life vampire you can get, but without the drawbacks of bursting into flame in the sunlight or craving the blood of the living.

Lucy's power is simple enough; she can pass through solid objects at will. If you thought she could sneak up on you before, well, imagine how good she is at it now.

Lola and Lana Loud

Code names: Splash (Lola) and Mudslide (Lana)

Skin Colors: Pink (Lola) and dark blue (Lana)

Powers: Water (Lola) and earth (Lana) manipulation

The twins have powers perfectly suited for them; the dirt-loving Lana can control earth in all forms, soil, mud, rock, what have you, while cleanliness-loving Lola can bend water like she was from the South Pole.

Lana has found her life mostly unchanged since she didn't really care much about her appearance anyway, and could still do all the things she loved doing. Lola, on the other hand, was devastated. She sank into a deep depression over what she felt were her ruined looks, until she saw that her siblings were all making the best of their new lives and realized that feeling sorry for herself was getting her nowhere. When the next Little Miss Great Lakes pageant came around, she put on her best sequined gown, marched out onto the runway, put on a truly spectacular water-ribbon dance for the talent portion and became the first mutant to… be second-runner up, but hey, it's something!

Lisa Loud

Code Name: Catalyst

Skin color: green

Power: causing chemical reactions

Like her twin siblings, Lisa developed a power that perfectly complements her; using her advanced knowledge of chemistry, she knows exactly what substances combine to do what, and can make devastating use of it, like causing metals to rapidly oxidize, or flammable substances to combust.

Lisa doesn't do much field work and has devoted herself to finding a cure for her family's condition.

Lily Loud

Code name: None. She's a toddler.

Skin color: fuchsia

Power: Has yet to manifest

Lily's a toddler. She has superpowers. Yes, that does sound like it would make her quite a handful. Luckily…

Rita Loud

Code name: Trifold

Skin color: magenta

Power: Can split into three identical versions of herself

With a family of super-powered kids, you'd need to be in three places at once to keep up with them. It's a good thing that's Rita's power! Her three bodies can act independently but have a shared consciousness. While learning to coordinate one new body, let alone three, was quite an adjustment, being permanently rejuvenated to her mid-twenties was nothing to sneeze at. Meanwhile, Lynn Sr. is wondering if it counts as polygamy if they're all the same person. Either way, things can get… interesting in the bedroom these days.

Lynn Loud Sr.

Code name: Open Flame (he's working on it)

Skin color: Teal

Power: Flame manipulation

Yet another case of the power fitting the person: Lynn, a chef, can generate and control flames. In the kitchen, he uses it to personally caramelize every crème brulee to perfection.

Like his wife, while he's had issues adjusting, he certainly isn't too broken up about his renewed youth and vigor, especially since it comes complete with a full head of hair.

And there you have it, the Mutant Louds! Like I said, if there's a ton of demand for more, I'll consider it. If anyone else wants to use this outline to come up with their own adventures, I'd be open to that too as long as I get first approval.