I Control My Slave's Orgasms - I only Let Her Cum when I Want It

The scene opens with Mistress Onyx standing over her naked, collared slave girl. She holds a vibrating remote control in one hand, a flogger in the other."You are here for my pleasure only, slave. Your orgasms belong to me." She presses a button on the remote, setting the vibrator to high and holding it against the slave's aching clit. The girl's body jerks and she arches her back, moaning. Mistress Onyx then takes the flogger and begins to strike the slave's supple skin, causing welts to rise and mix with the slave's arousal. She increases the vibrations, causing the slave's eyes to roll back in her head. Suddenly, she stops both the vibrations and the flogging, leaving the slave panting and desperate for release."You may cum when I tell you to."