[Make that currently enjoying what he's doing to the other boy. With the way Maxim is pressed against him, it's fairly obvious what the rush of power and control over the uptight Ravenclaw is doing to him. This is not the sort of bullying Herbert is used to.]

[Humming softly, Maxim lowers his head, pressing his nose into Herbert's shoulder and inhaling] Fear iz soch a vunderful schmell, don'chu think? [He chuckles darkly, flicking his tongue over the other boy's ear before nipping it] Ov courze, a boy like hyu probably neffer schmelt it hyuself, not offer de chemicals und equations dot fill hyu head. Hyu tink hyu zo perfect...

[He slides the knife along Herbert's jaw, drawing a thin line of blood] Hmmm, iz red. Chust like efferybody elze.