A test

Mistress Janet led them through the castle and downstairs into its labyrinth-like depths. After 10 or so minutes of walking they were brought to a pristine white room with two pieces of equipment inside that had several straps on it that looked like they were meant for securing a person in place.

Rosa was strapped into stocks that held her head and arms in place. Her ankles were strapped into collars attached to the floor making it so her legs were firmly spread, exposing her ass and pussy to her mistress.

Kynan’s bondage was different. He was strapped to a pole extending from the floor with his arms behind his back and his feet tied to the pole. His lightly twitching cock in full view.

“The goal of this exercise is to test your endurance, and to see what needs to be improved on. As harem slaves you will required to take medicine for your first month here that will acclimate your body to meet the physical requirements of your job. The results of this will determine the dosage needed. Over the next hour you will be constantly and relentlessly stimulated wether you think you’re done or not. Usually new slaves are so cum hungry they blow their loads in the first few minutes, I wonder if you backwater-types will do the same, or if I’ll actually get surprised for the first time. This trial will not end just because you’ve cum once or twice. Afterwards we will move on to the next stage of the physical. Any questions?”

“What if it gets painful?” Kynan asked. “I’ve never really cum more than, like, two times in a row. What if I’m unable to go on?”

“Good question.” Said the mistress, “the test will continue nontheless. You may surprise yourself with how much you are able to give. If that is all, we will begin. Let’s see if you cute little off-worlders can handle a real fuck.” She said with a smirk.

Rosa felt the cool sensation of lube being rubbed on her ass and pussy, then two rubber cocks as they were lined up to her holes and half-inserted. She resisted the urge to moan, she had to show this Janet woman she wasn’t just some two-bit slut. She heard the click of a switch and all of a sudden the two cocks began to pump in and out of her. To her right she saw Kynan with some kind of suction device around his cock that seemed to be moving up and down on it as the vacuum fluctuated. Aside from how powerless she felt, it actually felt nice, if a bit dis compassionate. She’d played with dildos before, and even had one of her friends fuck her with one at a sleepover, but it had always been a person doing the pushing. Here it was... different.

The machine picked up pace and she bit her lip. She allowed a moan to escape as the dildo double-penetration continued. She could feel the heat in her loins growing but held it back and moaned louder to drown out the mechanical sounds of the machine pistoning in and out of her. She had to show this bitch she wasn’t just an orgasm-chaser. She could see Kynan wasn’t doing much better. He hadn’t cum yet from what she could see but he was fighting it for sure.