A loving dom facilitates the most intense orgasm of her lover's life using her fingers and a vibrator on her lover's dripping pussy. She makes her look in her eyes the whole time she fucks her. When she tries to close her eyes, to lose herself completely, she withdraws the vibrator and stills her fingers. When she can feel her getting too close (she hasn't given her permission to come yet), she slaps her inner thigh, not as punishment, but because the sudden sensation stops her orgasm from building.