Mistress Eleise's slave endurance program is to keep her slaves sexually excited whilst in the throws of extreme pain. She starts by getting one of her slaves aroused by squeezing his cock between her booted thighs. When the whipping starts, she gets her gimp slave, himself secured in a spiked cock cage, to suck on the other's cock, keeping him hard, even when the whipping becomes considerably more intense. She ends the session with some whip wraps, in effect, wrapping a bull whip's sting around his body, the end result being excruciating levels of suffering!