This was actually rather adorable in many ways and I couldn't help but find myself falling in love with Draco's children and the interactions between characters (especially with Draco and Ron) and character speculations were often very funny and amusing.
Draco watched the children scamper away. With a twinge of dread, he saw Scorpius and Cassiopeia deep in discussion as they headed for Weasleys' Wizard Wheezes. George Weasley used to give them a twenty-percent discount on all their purchases, until the day they turned the formal dining room into a swamp and Draco had gone to the store to vent his rage.
Now George Weasley gave them a fifty-percent discount.
While the interactions of Draco and Ron are vastly more amusing, I can't pick a favorite and they work better in context, so instead here is another piece involving the Malfoy children.
"Is he going to be our new mother?" Cassiopeia asked. "I don't want a new mother."
"Eww," said Columba.
"Don't be so close-minded," Lyra told her twin.
"It's not that," Columba said. "I had an image of him dressing up in a witch's robe. He hasn't the shoulders or chest for them."
Truly the only thing keeping this story from getting a 5star rating from me is the consistent 'morning after' transition every time Harry and Draco begin to actually become intimate (personally it helps that Draco is professed to be a bottom throughout, which I quite enjoy).