Snape, feeling slightly annoyed at his Death Eater associates, decides to get back at them.
A little over a decade later, Snape smirked as he watched as "Greengrass, Daphne" sat at the Slytherin Table, looking relieved to see her secret father nod at her.
"Nott, Theodore." Followed next, sitting beside his half-sister and meeting his father's eyes. Blaise Zabini joined his siblings next.
Snape smirked as he saw Draco mingle with his fellow first years, unknowing besides himself, Pansy Parkinson, Crabbe, Goyle and Millicent Bullstrode they were the only Slytherin first years not Snape's kids. He wouldn't touch their parents for all the gold in Gringrotts. Except Narcissa.
Snape sipped his from his gauntlet, smirking as he remembered Lucius gloating about 'his' younger children coming to Hogwarts in a few years