The Angels are silenced.

Although she was unable to properly raise her upper body Joanna could twist her head from side to side. The rows of shackled Angels had been arranged so that the troopers were paired off, each one almost face to face with one of her comrades. Looking forward Joanna found that she had been paired with her corporal, Inez Lopez. The Latina was red faced with fury and her upper body shook violently as her powerful arm muscles flexed as she tried to break her wrist restraints with brute ****. The slaver caught sight of the frantic movements and swaggered forward until he stood directly behind the furious corporal.

"How absolutely delightful." The man said, admiring the view of Inez's wriggling rump. "I do hope you pretty little things don't break too quickly. The longer you resist the more exquisite your inevitable submission will be."

Joanna could see that several of the other Angels were thrashing about. She herself kept still, the cuffs she could see were heavy duty and attempting to break them was futile.

"Inez st..." Joanna began, meaning to calm her fellow NCO.

As soon as she began to speak Inez stopped dead and her back arched as she unmistakably received a massive electric shock. Joanna cried out in alarm only to see Inez contort once more. Up and down the rows of troopers, seemingly at random women bucked violently as they suffered the same fate. The slaver laughed aloud at the sight, slapping his thigh in delight at the women's torment.

"You sick fuck!" Lopez swore.

As Inez uttered the words Joanna felt a searing pain lance through her anus and jolt through her body. Unlike the tough Dominican, Joanna couldn't help but shriek in protest as the electrical current wracked every fibre of her body. Twitching spasmodically from the shock Joanna saw Inez respond to her scream by arching her body in excruciating pain once more. The shrieks and howls of the tortured Angels rapidly subsided to muffled gagging as the troopers fought back the consuming need to give voice to their suffering.

"Excellent." The slaver chortled. "I see that you are quick to learn. Usually the voice activated shock devices would be set to give the wearer the shock. However in your cases I thought it would be far more amusing and effective if each time you make a sound one of you other bitches pays the price."

Joanna clenched her sphincter and felt a slim rod inserted into her asshole. Attempting to squeeze the invasive device from her body she discovered to her horror that the probe had a flanged head that flared out inside her ass. Try as she might there was no way the muscles of her tortured rectum could push the disgusting object back out. Around her the look of dismay on the trooper's faces told Joanna that they too were trying and failing. The slaver was silent a moment, allowing the Angels to realise the situation for themselves.

"Good, now if you pretty little sluts are done clenching your tight asses I'll move on to the next step of your training."