Severus looks rather envious. He didn't get books about Norse mythology when he was four. He had to sneak illustrated herbals around like he'd later been expected to sneak porn. His father had, in fact, expecting and hoping to nick the latter, found the former and was deeply and loudly disgusted.
"Only if you're obvious about it," he says gloomily. "What do you think he offered?" This, mostly curious.
"I expect so; you have a wand," he shrugs. "The difficulty would be more in avoiding its mother and training it up once hatched." He nods. "You have to manage them a bit, but once you get under their defenses they tend to be quite loyal--so long as you never let them know what you think of their class distinctions." He shrugs, and says simply, "Well, yes; Regulus was a good Slytherin. He didn't pose." Except in sparkly green pants, but only in the common room and in private circumstances Severus never wanted to know anything about ever.