Growing Pains (джен)

“Severus,” Lupin said, his tone deceptively light. “You seem… smaller.”
“Is this a fucking joke?” the boy spat out. The ‘fucking’ bit came out more like ‘foocking,’ and Harry wondered if he’d somehow progressed from dreaming about Voldemort to dreaming about teenage Snape with a northern accent.
Because that’s clearly who the boy was, unless Snape had somehow managed to secretly father a child using nothing but his own genes.