AUs

NEXT GEN AU (assumes biological kids + North and Dexter are raising them together somehow…) 

North and Dexter accidentally activate a magical cloning machine and end up with human ectobabies with their mixed DNA (well, a “reincarnation of souls” — they THINK Rome, who was standing a little further away, wasn’t caught in the blast, but it’s impossible to be sure). Immediately after the blast, Dexter basically saddles North with childcare on the basis that he hasn’t signed up for parenthood (though he takes back this decision later and he and the kids do end up spending quality time with each other eventually).

Theo (and Ginny and Noemi by association) is the first to learn about the children - she had an appointment with North at the time and happened to be waiting inside when they charged in with their arms full of babies. Ginny is delighted and demands to be made the kids’ godmother immediately, while Noemi is somewhat wary of the entire concept of clone children but quickly becomes deeply attached. 

Rome basically becomes the kids’ manager, and is actually really great at supplying the basics for childcare and morning-after family planning - it’s almost like he’s done this before. He takes Zane off of the employment roster and informs him he’s intermittently going to be on babysitting duty from now on. A few years into the new routine, Rome tests him to make sure he would very much take a bullet for the kids (which is a phenomenally asshole move, as Zane informs him later) and he passes. “Uncle Zane” is a hit, and proves he can entertain three rowdy children whenever North is too focused on work - which, honestly, is a lot of the time. 

Mekhi visits once he learns North has kids, and invites Jemmy to come with him; she does so reluctantly (and also in sheer disbelief that North managed to have children) at first, but later sets down her enmity to become the Cool Aunt.

For once, North tells the organization the whole truth (that the children are theirs and Dexter’s due to a cloning accident) due to the potential added protection they’ll have from both “parents” by going public. Dexter claims he doesn’t care whether they’re believed or not, but North doesn’t trust him, at least at first. They’re keenly conscious of the possibility that the kids will be used as bargaining chips but take the chance for now, prioritizing the children's future freedom first. By doing this, they ironically end up bringing the Sanctuary and Dexter’s supernatural criminal organization closer together. 

The children are nominally North's and take their legal last name, Prasing (though two later decide to take Dexter's last name as well), but they don't try to keep them out of Dexter's world and in fact receive a lot of assistance from that quarter, mostly from Rome. Due to North's hands-off nature as a parent and their reluctance to expose the children to the inner workings of the Sanctuary, they don't turn down help to raise the kids as much as they usually would, and the Sanctuary members pitch in to the point where the kids consider the FMNetwork and other routine members to be part of their extended family. 

About the children

One child is phenotypically normal (XX), one has Klinefelter syndrome (XXY, slightly later cognitive development), and one has XYY chromosomes. Technically none of them are older or younger than each other, but XXY kid’s growth is slightly slower than the others so they’re considered the “youngest”, while XX and XYY are often mistaken for twins by passerby. Unlike their parents, they are entirely human, insofar as magical clone babies can be. Their shared birthday is September 14th. 

XX kid is named Marie after Dexter’s mom, changing their name to Mar after they come out as nonbinary in their teens. They take after Dexter and North equally as well as, oddly enough, Rome — they’re ambitious, responsible and very protective over their other siblings. They have a significant temper that results in a lot of property destruction when they clash heads with their siblings: as they grow up, this becomes a tendency to respond to provocation by proving themselves better than the other person in any way possible. They take an active interest in the world of criminal intrigue, and join the supernatural consultation agency Halcyon (whose leader they have an intense crush on for a few years) in their twenties. 

XXY is named Altair after the star North is fond of, but is called Allie after she comes out as trans a few months after Mar does; she chooses not to change her birth name. She’s shy, sensitive and deeply proud, with a bit of a stutter that lasts into her teens which she’s deeply self-conscious about. She cries a lot but always tries to hide it. Allie gets along best with North, who knows to give her space. She also shares their overthinking streak, preparing for everything and anything, and learns how to keep her calm under outside pressure (as opposed to becoming aggressive or escalating the situation) the earliest of the three. As the baby of the family, the other two have a tendency to coddle her - though she dislikes this most of the time, she uses it to her advantage in placating hot tempers whenever they’re fighting.

XYY is named Rigel, another one of North’s stars; they suggested Castor and Pollux for XYY and XXY, and it probably would have happened if Dexter hadn’t kicked up a major fuss. (However, he also vetoed Columba and Vega on the basis that they were “too girly” and would “get (the children) laughed at for the rest of their lives”, so he’s not always the best judge regarding names.) He’s basically a slightly less bullheaded Dexter — confident and outgoing, generally good-natured but with almost no impulse control, which got him into no end of trouble growing up. He was endlessly energetic as a child, but became a pretty lazy adult (unless his competitive streak is provoked, in which case he’s more than ready to kick ass). Rigel is closest to Zane, and shares his nonchalant attitude towards supernatural shenanigans. 

All three kids have North’s dark hair, though thankfully none of them inherited their Hirschsprung's disease. Rigel and Mar have Dexter’s curls, while Altair has straight hair. Rigel’s eyes are pale brown (close to amber), Mar’s are light blue, and Altair’s are dark brown. Altair’s skin is lightest, Rigel is darkest (his skin is a little darker than North, more coffee-colored) and Mar is somewhere in the middle. 

tl:dr; Rigel and Mar are darker, with curly black hair and amber/blue eyes respectively, and Altair is pale with straight black hair and dark brown eyes. 

Ironically, they all end up taller than Dexter; Rigel is around North’s height at 176cm, Mar is an inch shorter at 173cm, and Altair got the Tall Masalin Genes and has an adult height of 181cm — if she hadn’t started on blockers as a teen she’d have been over 6ft.