Nora encounters her slave playing with his phone and she don't like, when he uses it without her permission.
Immediatly she drops down on his throat, not careeing she could crush his windpipe under her ass.
She takes his phone, peeping what messages his got, while she sits on his air-supply.
May be she writes on back to his girl-friend and shows him the humilating text she sent.
Then its time for cutting off his breath, she moves on his face and let him breathless. some more fullweight throat-crush follows.