Shayna’s rule was simple – when she received a message on her phone from her Master, she would strip naked, drag the fucking machine into the kitchen, mount it, and stay there until she orgasmed. She didn’t have to do it if her housemates were home when she got the message, but once she started she wasn’t allowed to stop even if they returned.
She hadn’t been caught out yet, but her Master was delighting in sending her the command at more and more marginal times – just before her housemates were due home in the afternoon, or while they had only left for a quick trip to the shop. She spent most days surreptitiously edging, keeping her pussy sopping wet without letting herself cum. It made her stupid and slutty for most of her waking hours but on the plus side she could orgasm very quickly upon receiving her command.