The guards, after each of them had made her suck them off and shot cum on her face, unceremoniously shoved Joy into an empty room.
She had been rubbed down from head to toe with oil, and had had liberal amounts of lubricant applied inside both her pussy and her asshole. Her pussy had also been shaved completely bald, and she had been injected with a chemical that the busty blond nurse informed her would prevent her from ever growing body hair below the neckline again.
And now, she was here. Presumably waiting for whatever came next.
The room didn't remain empty for long... a dickgirl suddenly materialized in front of her. She was tall, blond and leggy, with a stern look on her almost painfully beautiful face. She wore a black leather corset that stopped below her breasts, leaving them completely exposed; she was naked below the waist save for a leather garter belt, black thigh-high stockings that looked like they might be made of rubber or latex, and black spiked stiletto boots. Her thick, uncut cock stuck out at Joy from above her perfectly shaved pussy. In her left hand she held some sort of slender rod, possibly made of metal.
"I am Marisa," she said in a cold, clipped English accent. "But you may call me Mistress."
"You wish," Joy said.
Marisa's right hand snapped up with all the quickness and ferocity of a striking rattlesnake. Joy's head snapped sideways with the force of the blow, and an angry red handprint appeared on her left cheek. As she steadied herself and started to recover from the slap, she heard the sound it had made on her tender flesh echoing in the empty room.
She went with her first instinct... which was to hit back. Marisa apparently hadn't been expecting that; Joy's fist split her lower lip pretty thoroughly, and the blow nearly knocked the dickgirl on her ass. As she regained her footing, she lunged forward and the rod in her left hand pressed against Joy's midsection.
Unimaginably intense agony exploded through Joy's nervous system; it felt as if the pain centers of her brain were being attacked directly. She wasn't even aware she was screaming until she heard the echoes of her tormented shrieks reflecting back at her through the room's excellent acoustics.
While Joy was still on all fours on the ground trying to catch her breath, Marisa walked around her, heels clicking on the metal starship decking beneath her feet and echoing ominously. "This is my boomstick," she said. "I choose whether it inflicts pain..." another surge of agony shot through Joy's body as Marisa slapped her on the ass with the weapon, "... or pleasure." She plunged three inches of the rod into Joy's pussy, and within seconds Joy was cumming violently, squirting pussy juice onto the boomstick, bucking her hips and moaning for more like a slut.
"As much as I enjoy giving you pain," Marisa continued, "it makes me even hotter to watch you experience pleasure. So behave in a manner that will inspire me to reward you."
"Yes, Mistress," Joy gasped in between deep, panting breaths. The boomstick, still set to inflict pleasure, brushed lightly over her clit and caused another explosive orgasm. Joy's thighs and ass cheeks kept quivering from the force of her climax for nearly a minute after she had finished cumming, and pussy juice ran freely out of her hole and down her legs for another full minute after that.
"Are you going to be good now?" Marisa asked.
"Yes, Mistress," Joy said. "Please Mistress, let me suck your cock."