This drabble was written as a thank you to Blue-Eyed Chica, who left the 500th review on this story.
A Real Cousin
Harry peered uncertainly at the small, squirming form on the floor, so focused that he jumped nervously when Sirius' hand rested on his shoulder.
"I wasn' doing any'hing!" Harry protested quickly.
"We know you weren't, cubling." Remus' words soothed him right into an embarrassed flush.
Harry ducked his head and looked past the baby on its quilt to find Remus sitting comfortably there, beckoning him closer.
Harry looked warily at the baby, then scrambled carefully past, slightly-scrawny four-year-old body curling easily into Remus' lap.
Harry snuggled close, and Remus hummed, kissing his head, making him giggle.
The baby stirred, with a quiet cry, and Harry's face fell, expecting to be put aside-
"Siri?" Remus murmured, and was already scooping up the baby, rocking him. He settled quickly, and Siri grinned reflexively as he opened faded amber-coloured eyes.
"Harry," Remus said gently, "Rigel will be a real cousin to you, all right? Or like a baby brother." he added. "We are never going to forget you, or choose Rigel over you."
Harry jumped, then hid his face against Remus' shirt, and when Remus glanced up at his husband . . . Sirius looked stricken.
He rolled his eyes. He'd expected this, after over a year with the Dursleys, but everything would be fine. He beckoned Sirius closer.
"Just be a better big brother than Siri, okay? He was always teasing." Remus whispered playfully, and Harry giggled again, looking at Rigel, who looked back bemusedly as Harry's little hand gently prodded his nose.
Harry tilted his head, looking up at Siri, who gave him the same smile as always, and then Remus, whose arms were as warm and welcoming as ever, and smiled a little.
"I 'ake care of Rigel?" he carefully enunciated, and Remus laughed warmly.
"Yes, cubling." Siri said fondly. "When you're older."
Oh my goodness, I was so sure I had already posted this months ago. So sorry, Blue-Eyed Chica! (Originally I had a draft of this written, and a computer mishap destroyed it, so it had to be rewritten, after I gave up on recovering it, and really, this has been through quite the trials already.)
The request was for something with wee Harry, and the poor thing being worried because Remus and Sirius had a kid of their own, now, as well as him. I hope I hit what you wanted, dear, and I am terribly sorry for the horrible delay.
One of six things (. . .so far) being posted today (one is original, and will only go up on AO3) for my birthday tradition! (and I will be trying to update a little more frequently again soon, along with the other projects I am now juggling madly. More about those when they go live and I have more drabbles to update!)