DISCLAIMER: This is not mine. The wonderful magical world of Harry Potter belongs to the one and only J.K. Rowling.
8 November, 1959
Walburga and Orion wore their best clothes and Sirius had been fitted for his, which he disliked. Walburga complained how it was unbecoming of a Black to do so but Orion reminded her that Sirius was five days old and was wearing confining and itchy clothes that irritated his sensitive fair baby skin. Today was a very important day for the Black family, it was the day Sirius would be sealed and proclaimed the heir to the Noble and Most Ancient House of Black through charms and spells. The sealing prevented Sirius from running off and only returning for the inheritance, but Sirius never would because their baby was perfect. It also prevented Sirius from being killed by a family member (as long as he wasn't disowned but that would never happen because again their baby, their Sirius, was perfect). The entire family and distinguished guests attended, such as the Minister for Magic, Ignatius Tuft and the old potions master: Horace Slughorn. He enjoyed the privileges of being friends or friendly with esteemed witches and wizards; Walburga had insisted he come to meet his future student.
Surprisingly, Sirius wasn't there to attend the majority of the event despite it being thrown in honor of him. "Hello Professor." Orion greeted.
The round man in fine wizard robes smiled, lifting up his walrus like mustache, "No need to call me Professor anymore, call me Horace." he said cheerfully.
Orion smiled, "Walburga and I are very pleased that you could come."
"Oh I could hardly deny an invitation that would let me see my future student and member of our house. Where is the little tyke?" he asked, his eyes searching the room.
"Sirius will be brought out for the sealing, we find that it'd be too much for a five day old to be at such a grand party." Orion said elegantly.
"Oh well, I'll just have to make sure I get to see him up close." he grinned and focused on something behind Orion, "Walburga!"
Walburga took her place by her husband and gave Horace a double air kiss on his cheeks, "Hello Horace, I'm so pleased that you could make it."
"I am too. You look very well." he said kindly.
She put her hand to her heart and scoffed, "Oh you're too kind."
"I mean it, not a hair out of place, poised and very pretty," he said as a non-threatening compliment, "Perfect as always."
She smiled, "Wait until you see our son, he's the same. Even better! He has to be the most beautiful baby in all of Britain."
"I have no doubt about it." Horace said in a jovial tone.
"If you'll excuse us, it's time to bring him out." Orion said, pulling his wife away.
Walburga took Orion's hand and moved out of the ballroom and up the stairs to fetch their son, "I still say that Horace should've been his godfather. Alphard couldn't take care of a potted plant, he'd kill our son within a day." Orion complained.
"Better Alphard than Cygnus, he probably would purposefully kill our son within an hour." Walburga scoffed, "And we can't make Horace the godfather, he doesn't know the ways of our house."
"And Alphard will teach Sirius that?" Orion jabbed.
"Oh hush." Walburga said.
Normally Orion wouldn't stand for her nonsense, but she had just had a baby, a son and heir and seemed to be remarkably sore. Without potions (provided by Slughorn to his glee), she probably would not have been able to make it up the stairs let alone to them. They arrived in the room where their appointed governess, Angelica, cradled the baby, "Is he calm?" Walburga asked unaffectionately.
"The calming charm worked well, a muffling charm was put on his ears so the loud noise wouldn't bother them." she said kindly as she stood up to hand the baby to Walburga.
Orion insisted on carrying their son but Walburga was worried that she'd seem to be an unaffectionate mother. Orion argued that it'd be best if he held his son to prove to anyone who said otherwise but finally relented when she said that he looked enough like the both of them and no one could question his paternity now. She held the baby and held her head high with poise and pride as they descended the stairs. The pair walked gracefully into the ballroom where everyone stood aside, leaving a trail for them. They were greeted by whispers and 'awes" as they carried their handsome son up to the platform where the ceremony and baptism would begin.
Sirius was baptized into the Catholic Church first which he did not like as he squirmed in Alphard's arms once the water was poured over his head. When he calmed down, Arcturus and Orion surrounded him as he was cradled by a small bed. Orion felt bad when they had to draw blood from Sirius, a small cut but it hurt Orion to see his son in pain all the same. They pointed their wands at Sirius, they transferred the titles and powers of the heir over to Sirius, sealing him as the Heir to the Noble and Most Ancient House of Black and gave him the middle name: Orion. Once the ceremony was over, the room burst into applause. Thankfully the sound didn't bother Sirius who took it upon himself to close his sweet grey eyes and fall back asleep.
After the ceremony, Walburga and Orion carried Sirius into a separate quiet parlor and allowed visitors to see Sirius after they took the muffling charm off. One person was allowed in at a time after being thoroughly vetted at the door; everyone awed at his beauty and congratulated the couple. Horace Slughorn was by far the most amusing, "There he is," he said as he entered the room, "You're right, he's the handsomest baby alive. Very regal already."
"Would you like to hold him?" Walburga asked proudly.
"Oh yes, I'd love to." Horace said as he extended his arms to take Sirius into his. The man was very gentle with their baby, "What a good boy he is, oh but there's a gleam of mischief in his eyes."
Sirius cooed, "He won't be giving you any trouble at school Horace." grinned Walburga, "He'll be the best behaved Slytherin to roam Hogwarts' halls."
Horace nodded as he gazed down at the baby who decided to take a snooze in his arms, "Which reminds me, I had a fine seamstress tailor him a Slytherin onesie."
"Thank you Horace." Orion said gratefully, eager to see the suit that'd fit their son like a glove.
Sirius' future was laid out for him before he was born, he had set expectations that he was supposed to meet. Little did his family know, he would have no intention of doing so. For now, Sirius was their perfect baby boy. Healthy, good looking and pureblooded. Toujours Pur indeed.
A/N: Toujours Pur translates to Always Pure. This is the family motto for the 'Noble and Most Ancient House of Black'.