N148 Bertie Strangle Spitting Hand Over Mouth Smother

Bertie made her slave lie down under her, because Mistress wants to have joy and check how much time slave will be able to stay without air! Mistress closes her nose, her mouth, while the slave suffocates, mumbles, and begs. Bertie amuses that the slave is under her, resists, albeit nothing can be done with it, because otherwise her penalty will be even worse. Slave feels sweet slaver of her Mistress, who just has fun and plays games.