^Might not be a smell thing. Instead it might have to do with burying your face into a pet's soft fur and enjoying the feeling, so maybe that's what she's equating the experience to.
Yeah, no, turned it off the moment the anime made noko's entrance bash and bloody the faces of the students closest to the door. They're upping the craziness of this in the wrong direction. There's no blood in Nokotan manga!