Pyotr walked back in not long afterwards, checking both girls plugs before squeezing their bellies with his large hands. The pain caused their cunts to clench onto the cocks and more juices ran down soaked thighs. He checked for damage from the clamps by pulling and twisting nipples and clits, not because he expected to find any but because there were few things hotter than seeing a cocksleeve scream and try to escape while at the same time pushing back on a massive cock fucking her slick hole.

He repositioned the cunt on her back so her swollen belly was more painful then forced her head back, strapping on a spider gag. She made tiny screeching noises and was already drooling when he rammed his cock straight down her throat. The harness he'd attatched kept her calves pulled back against her thighs, splaying her wide open as the slave tirelessly fucked her hole and he could see her juice dripping onto the tiled floor. He tightened the clamps that were back on her nipples, tugging the chain hard. Each time she screamed her cunt dripped more and his cock went deeper in her tight throat. He did enjoy watching a cocksleeves throat bulge from his cock.

He gripped her bruised tit flesh with one hand and closed her nostrils with the other. As she fought, struggling to breath, he crushed her tit harder and increased his use of her throat. She convulsively swallowed his ropes of thick cum, desperate to breathe. Still hard, he fucked the last drips into her guts before pulling back enough for her to gulp a few deep breaths. She continued to drool due to the painful gag.

Looking at the clock he confirmed the time then indicated. The men unshackled the cocksleeves, carrying them to a steel floored room. Both cunts looked horrified as he explained the next lesson, then nodded. Pyotr smirked, knowing they had to fail. After removing the inner plug from the tunnel sleeve one began to crawl to the recessed bowl, trying desperately, futilely to stop her ass leaking. Off course, no matter how hard she clenched, the tunnel plug remained open. Finally getting there she crouched over the bowl and gratefully ejected the liquid and waste. Her belly still churned, knowing she'd failed her task. It was little consolation the other cunt fared no better.

Knowing most, if not all the leakage was the coffee enema Pyotr watched as, with considerable trepidation, they started to lick the floor clean. The taste was deliberately disguised so the cocksleeves were unaware of it, which always amused him. While they licked it up he paddled them hard for their hesitation. Delicous dark red welts patterned their asses and his cock grew harder as the flesh rippled with each blow. Copious cunt juice hit the floor and also needed to be cleaned up, as did their asses. While they worked he continued marking the soft white flesh.

Once they, and the floor, had been thoroughly licked clean they bellied to Pyotr before crawling to the men. Licking their ankles and calves the cunts whimpered, begging for more cock. Pyotr agained nodded and four went to each piece of fuckmeat. They carried each one to a device. A metal framework hung from an overhead tracking system. A couple of large hooks and slim horizontal poles, a couple more curved vertical ones, then two longer, heavier hoizontal bars at right-angles formed the basis of the frame.

Ropes were bound around each cunt from wrist to forearm then the longest hook was woven thru the last couple of wraps, holding her in place. Arms were extended and lashed to the smaller horizontal bars. After more rope was wrapped around each leg each was then secured to the much heavier horizontal poles. This put the cocksleeves in a painful hoizontal splits position while the upper half of their bodies were arched back, pushing their tits out.

At the push of a button the track moved, simultaneously lifting both cunts off the floor till the fuckmeat was at the perfect height for use. Spun around so Pyotr had the best view the first bred slave moved into position, raised her higher in the air and shoved four fingers in her wet hole. The cocksleeve quivered, trying to fuck his fingers, but the other one quickly slashed a riding crop on her exposed asshole, hitting the tunnel plug as well as her hole. She screamed most prettily as the swollen flesh of her asshole reddened with each blow. Four more on her sitspot and a savage pinch and twist on her clit had her lose the struggle and her cunt juice gushed all over the fingers inside her.

Quickly the crop was dropped and another bred slave moved over, roughly yanking the plug from her hole. Removing the tunnel plug left a good sized gape and he positioned his cock against the swollen, red hole. The first had also removed his fingers and lined his huge cock up with the still dripping cunt.

He reached over, pressed a button and the cocksleeve dropped straight on the two cocks, her bodyweight ensuring they both bottomed out. The men could feel each others cocks through the thin dividing membrane as they forced her to impale herself on them. Another press of a button and the cocksleeve was lifted back up then dropped down again. All the men had to do was stand there as she was forced to fuck them deep and hard. It would be painful with large cocks but the bred slaves were special so it was agonising, doubly so due to having freshly whipped holes. Both cocksleeves were screaming and soaking the floor as the men stretched and pulled and pinched and twisted nipples and clits between drops. The cocksleeves were cumming every couple of minutes as the pain was alternated with the pleasure of the cocks each time they were dropped onto them.

Pyotr grinned to himself. The cunts were becoming good fuckmeat, constantly dripping for cock and pain and craving more, just like a trained cunt should.

The track moved down the wall, pulling the cocksleeve sideways. A natural approached and soaked his cock in the drool from the spider gag before sinking into her mouth. This time her throat distended without her screaming and she was no longer fighting to breathe. As he was slamming down her throat, two bred slaves now fucked her holes to their own tempo. The one enjoying the feel of her smooth hole stretching tightly around his cock pushed all the way in. Balls deep, he flexed repeatedly while forcefully spreading her cheeks wide, gaining an extra inch of depth.

Her cock muffled cries were so sweet.

Suspended, impaled on these cocks her cunt was again dripping with need. A moment later she jerked as a different, thicker cock forced its way into her ever soaked cunt. Now facing each other, the brothers synchronised, filling and emptying her holes in tandem, lifting her into the air with the power of their pounding cocks and driving the other slave's cock down her throat. The cocksleeves legs ached from being spread so wide but the cocks were all she could think about. The brutal use made her squirt again and again as she clenched down, trying to get more cock inside her.

Both cocksleeves were treated the same, brutal fucking and pain inextricably linked in their minds.

Pyotr started dribbling what appeared to be hot wax onto their already bruised tits and swollen nipples. As the Icy Hot added to the wax started to take effect the cocksleeves started screaming in pain, writhing on the cocks impaling them and soaking the floor again. The pain intensified.