As the doors closed behind them once more and the lights rose to a eerie red glow the audience were greeted with the sight of a slender red head with pale skin and an athletic toned figure. Once again she was quite naked bar a solid looking metal collar around her neck.  Lisa strode up to her and dumped a heavy holdall at her feet. The girl's green eyes followed it to the floor.

"Kairi"

The red head turned her back to the audience and put her hands together allowing Lisa to apply a pair of handcuffs. Lisa pulled Kairi's arms up and into a reverse prayer position, then locked a short chain tightly in place between the handcuffs and collar. Another chain wrapped around her elbows pulled her arms together painfully.

"Turn" 

Kairi shuffled around again looking out at those who had paid to watch her suffer. Lisa dragged over a metal bar with a cuff at each end. It was the work of seconds for her to lock the spreader bar in place around Kairi's ankles. 

"Now the fun part.." 

Lisa made a hand signal and with a loud clacking sound a chain was lowered from the dark ceiling. Lisa bent over, wiggling her tiny shorts, and secured the chain to the centre of the bar. Standing behind Kairi she waved again and the chain began to retract, Lisa supporting her victim as her feet were lifted away. Once Kairi was hanging upside down  head three feet from the floor the chain stopped winding once more. 

"All Kairi has to do here is escape... you may think thats impossible...." Lisa spun the girl slowly letting the small crowd see every inch of her.." but we are going to give her a fair chance. Standing in front again she threaded half of the keys for the locks used onto each of two small metal rings. Grinning she produced a pair of nipple clamps. She spent a moment or two massaging each of Kairi's small breasts in turn before turning her attention to Kairi's nipples, rubbing them then kissing them surprisingly tenderly. Then with a mischievous grin she tightened a clamp on each throbbing nub then hung the keys from the clamps.

"There you go, we have even given her the keys ... too easy ? Well to make sure she makes an effort, we need to add some motivation too..."

Lisa chuckled to herself and retrieved one last thing from the holdall. It looked like an oversize candle with several inches of fuse out the top. It was red with "Danger" written down one side. Without any warning she jammed the strange object between Kairi's legs, driving it deep into her upturned pussy. With a final flourish she lit the fuse and stepped back. As the fuse hissed and sparked Kairi bagan to thrash manically, twisting and jerking trying to get some free movement in her arms or perhaps reach the keys with her teeth. 

"Oh dear she's not doing too well... " Lisa took another step back and a glass screen descended in front of the horrified crowd. Kairi's thrashing became more and more frantic as the fuse burned down. Twisting, curling up, shaking, even trying to reach out to the keys dangling from her throbbing nipples with her tongue. Finally the sparks from the fuse reached the top of the cylinder stuck between Kairi's legs. Some of the audience were perhaps still expecting  a comedy boom. But Kairi screamed in frustration. There was a deafening boom, shaking the whole room, followed by horrific wet splatting noise. 

Lisa turned to the next set of doors without even glancing back to the glass screen now plastered red.