Well.
Regulus takes back everything he said about being a parent.
Nothing would prepare him for this.
Harry was... A mess. To say the least. ReguIus wonders if James was like this with Effie and Monty his first year of Hogwarts.
They're both a mess. Regulus will go in one shop for one thing, end up with a cart of things due to his husband and son's ADHD.
"Dad, can I get this?"
"Reg, can I please get this? I'll be so good tonight-"
To both of which Regulus caved in and bought said items.
They'd bought Harry a cat as a pet to take to hogwarts ("You'll get a snake if you get accepted in slytherin." Regulus had told him.), they'd gotten Harry's books (+ 20 galleons of extra books just for fun.), robes, his wand, and anything else he might need for his classes.
Harry is in need of a break, the poor boy is overstimulated and overwhelmed, tired and grumpy from a long day of shopping. He holds Regulus' hand tightly as they pass through the busy alleys, looking around at the surroundings curiously.
"Can we go home? I'm tired." Harry groans, tugging on Regulus' hand.
Regulus chuckles softly at Harry's complaint, the corners of their lips tugging into a fond smile as they ruffle their son's hair gently.
"Of course, Harry. We're almost done, and then we can head home and rest," he soothes, continuing to lead the way through the bustling streets. As they walk, he glances at Harry, noting the clear signs of overstimulation evident on the young boy's face.
"Are you feeling overwhelmed?" he asks gently, squeezing their son's hand in reassurance.
"Uh-huh, loud..." Harry whines, burying his head into Regulus' side and holding on to their arm with both of his small hands. He's never liked loud noises or large crowds, and the busy alleys today are a nightmare to him.
He looks up at Regulus with a tired expression, big blue-green eyes showing that he really needs a break.
Regulus nods understandingly, noticing the way Harry clings to him tightly. He can sense the boy's weariness and discomfort from the sensory overload.
"I know, sweetheart. It's a lot to take in," he murmurs, gently wrapping an arm around Harry's small shoulders and pulling them closer against his side. He casts a subtle glance around, noting the crowded alleys and the various noises and voices.
"Just a little bit longer, and we'll be out of this crowd. Hang in there, Harry."