Unless it slips or she thinks he'd be into it, I doubt it. Although, the fact Noriko has a leash, a collar, wants to be walked around, and barks on cue:
Kind of makes me think that she's not that good at hiding it.
There's a reason Sensei has mentioned she might actually be a dog:
Actually, it gets a little more interesting, when you realize Maya is considered a stray cat:
Both Maya and Noriko are compared to certain animals by Sensei, wear collars/chokers, were tutored/trained by Sensei, and also act like his pets that desperately want his affection in different ways.