AN: I decided to give writing a try so here is a prologue and the first chapter
This story is inspired by dhully's story "squib"
I tried to contact them but they did not react and considering their last activity on ffn was more than 3 years ago I decided to post this anyway
If anyone has a problem with it, tell me and I will just delete it and continue writing for myself and my friends
Disclaimer: Harry Potter is not mine, it is why it's called fanfiction

"The two young parents could not help but stare at the healer, what had until now been a normal checkup for their twins had just become a nightmare./p
"No, this can't be true, are you sure you cast the spells right?" Her voice was more begging than anything else. She was hoping, like so many human beings before her, that by denying it, it would not be true. The healer frowned, how dare the ignorant girl question him, he had taken care of illnesses and childbirth since before she was ever born. He did not voice his annoyance however and explained calmly that there could be no mistake: their youngest child had come down with Maginterus, fatal when found out to late but not incurable when found out on time. It was one of the many reasons that children needed bimonthly checkups.
"How is it cured Marcus?" The young man asked anxiously, gripping his wives shoulder in a tighter hold. Marcus sighted:
"Young Richards Magic is destabilizing, to correct this, he will need both of you to willingly give him a portion of your magic. The stabilizing process is slow, and we are lucky to have found out early on, because of this we will be able to slowly stabilize his magic and stop it from decaying." He tried explaining as calm as possible, but it was difficult when the people he was explaining it too where so agitated. Luckily for him, the two young adults would do anything for their children and where eager to begin curing little Richard.

*~.~*

Lily stood up from where she had been crouching on the floor, drawing out the last set of runes. Looking at her work, she gave a satisfied sight.

"That was the last one, if someone tries to harm my babies, this rune array should protect them." With a nod to herself she left the nursery and went downstairs where her husband had his arms full with the twins. Entering the kitchen she could only gape at the scene playing before her: James was desperately trying to calm Richard who was, throwing a tantrum about his food while the rest of the kitchen looked as if a bomb had gone off, everything was colored in different colors, including her eldest son. Deciding that James was busy with their youngest, she went to Hadrian whom had been the calmest of the two since the beginning. The toddler looked up at her with a mischievous glint in his eyes.

"Mama, up" the child reached up to his mother, whom smiled indulgently and set the child on her hip. A moment later she felt a tingling cold wash over her.

"What did you do now?" the redhead mock glared at her son, who started to giggle, "colors" he told her in delight, when looking down she saw that she, indeed, matched the kitchen in its bright coloring scheme. Suddenly she became aware that it had become suspiciously still in the kitchen. She turned around to find out what was happening and found it difficult to smother a laugh, it seemed that she was not the only one affected by the accidental magic of her sons. James, just like her was covered from head to toe with colors and something she could only assume was Richards food. Said child's face crunched up in a grimace before breaking out into a grin and a moment later a bright and happy laugh rang trough the kitchen.

"James" she scolded the young man, "Richard is not supposed to do magic, it could set the progress back to zero. And I had hoped we could actually be at st. Mungo's in time for once, now we all need to change." He stared at her, baffled.

"Why is this my fault, you know that the children do this every time Richard begins to cry." He chook his head, wondering why this always happened to him. Lilly knew that Harry only tried to stop Richard from crying, it worked most of the time however it had in consequence that Richard tried to copy, or copied, his older brothers magic, something which was bad for the child's health. After everyone was cleaned and liberated from colors, except Harrys hair which somehow stayed red similar to Lilly's, the small family went to the wizarding hospital.

"You took your time" Marcus grumbled, he had had a busy night and now he also had to deal with the Potters, a headache was probably imminent. He suddenly took a second look at young Hadrian, since when did the child have red hair? While leading the young family to the checkup room he made sure to keep an eye on the oldest Potter twin, his suspicions where confirmed when the child's hair turned from red to black while passing through purple and blue. Shooing the Potters into his working room, he first checked the Hadrian's health, before casting a spell which destroyed the last of his doubts.

"It seems that we have a little Meta morph magus here, it will only strengthen Hadrian's claim on the Black lordship after Sirius Black dies, even more so because that man named the child his heir." The way he spoke about the child's godfather clearly showed his disdain for the immature man, not that said man would have cared if he had been present.

"That is great! Imagine all the mischief Harry will be able to get away with when he goes to Hogwarts" James grinned, already imagining what he would have done had he been a Meta morph magus. "James!" Lilly hit her husband over the head, acting scandalized "Harry will do no such things, he will be responsible with his gift"

"Aw, how can you know, he is the one whom always colors our house as trough it is one giant canvas"

Lilly chuckled at that before turning back to the healer.

"Richard performed accidental magic this morning, I hope it has not affected his health to badly" she told him, acting again as the worried mother she was. Marcus, who had been performing the general checkup and had found the youngest child mostly healthy cast one last spell. He frowned,

"The accidental magic has not affected too much, however the magic should have been more stable than it is." He informed them "You should really be more careful, if his magic has not stabilized before his third birthday we will need to have part of his magic destroyed" The rest of their meeting went as usual, the young adults giving part of their magic to Richard and discussing the best diet for their children with the healer.

AN: I decided to put the prologue and first chapter together, that way the first part is not so short