**This is Room 4. You may wish to read Room 1, 2 and 3 to follow Jay's experience in the Institution. I welcome feedback and ideas, so feel free to send through.**
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David and Jay entered the elevator that connected the apartment back to the main foyer of the Institution. David brought with them the girl who moments before had been fucking herself with the top end of a whisky bottle -- she crawled behind them on hands and knees, led by David on a leash, trails of cum still visible down the inside of her legs.
As the elevator doors closed, the door to the foyer unlocked and Jay pushed it open, finding himself back in the central octagonal room.
He looked back through the perspex floor to the inverse dome below him and saw the fuck party was still going. He could hear a faint thwack that coincided with the forward thrust of the man delivering violent anal to the perfectly rounded buttocks of one of the women.
Mariella was still in the foyer with her girls, but now her pet Maia was resting on her knees, with her head in Mariella's lap, apparently asleep.
"David my love, what has happened," Mariella asked her husband, nodding towards the the woman following behind them, still crawling on all-fours.
"Couldn't keep her hands off herself -- I think she needs to go back a few levels," David responded, kissing his wife on the forehead. In a remote part of Jay's mind, he registered that this was the first kiss he had witnessed at any of his visits to the Institution.
"And Clio?" she asked.
Jay presumed Mariella was referring to the other woman who had been kept caged and penetrated in David's apartment, and who Jay last saw on her knees with her chest pressed into the floor in a bow to wait for David's return.
"Fewer issues," David replied.
Mariella stood up, taking the leash from David and waking Maia who grumbled and repositioned herself cat-like on the floor. The leashed girl immediately cried out, wrapping both arms around Mariella's legs and begging not to "go back".
Mariella spoke a few words into her smartwatch and moments later the huge, hulking man wearing an executioner's mask -- the same man Jay had seen penetrating two women with a double-ended dildo just a few hours - earlier came through the door marked "Room 1." He picked the leashed girl off the floor, threw hew over his shoulder, and walked off with her. Mariella and Maia followed after him.
The door to Room 1 remained open and another woman walked through it. The collar around her neck was connected to a spreader bar, to which her wrists were bound. The overall effect was a little like crucifixion, the girl's arms were stretched out to either side. She wore sheer panties pulled tight showing off her slit, and her big, heavy tits that sat straight out from her chest swayed as she walked. They were attached to weighted nipple clamps.
David eyed the newcomer, who Jay presumed was a replacement for the girl who had just been hauled off.
"Make them bounce," David instructed. Immediately the girl started to jolt her body and her huge tits flew up-and-down, the weights creating extra excruciating movement. Each time they went up, they almost touched her chin. She cried out each time they went downwards. David smiled.
David turned to Jay: "You go -- just through the door marked 4. I think I'll stay here for a while." The last thing Jay saw before he went through the door was David's hand forced down the front of the girl's panties.