Julia the Mistress enjoys controlling and teasing her slave's cock. Her girlslave teases the slave's dick by her orders, the Mistress fully controls this process.
Julia is dominating over her slave making him go frantic, she makes the girlslave caress his dick, suck on it, masturbate but deny the slave's orgasm. Both of them
are delighted with the thrilling sight of dominating over the slave, controlling his dick and him entirely.