The Bum Box | bondage story | key, skirt, knickers, bondage, cage

"Well what do you think?" Kate asked as she led Nicole and Dania into the cellar. The women looked at the heavy metal box that was no larger than 1.5 foot cubed.

"Well how do you restrain someone in that?" Nicole asked disappointedly.

"Oh easily," Kate smiled.

The box was made up of two halves with a join around the middle allowing the top half to lift up. It had a round hole in the middle of one side that was half in each part of the box. It also had a glass like surface on top.

"It's made of two inch thick hardened steel," Kate explained. "It's bolted to the floor although its so heavy it can't be moved anyway. Why don't you try it first?" she smiled to Nicole as she took a key out of her pocket. She turned the key in the keyhole and the box opened on its hinges. "Just put your head in here," she purred to Nicole as she tapped the box with her heel.

Still wearing her summer top and skirt from the beach, Nicole knelt down and slowly put her head inside the box, with her neck resting in the bottom half of the hole. Kate, also dressed from the beach in a light thigh-length skirt and top, sat down on to the box and smiled as it gently closed under her weight. As it closed completely there was a small click. Kate then reached down and removed the key and dropped it into her cleavage.

The hole in the side of the box had closed securely around Nicole's neck so that her head was now trapped inside the box. Inside the box was padded and comfortable but quite tight with only a couple of inches space around Nicole's had. It was also dark, with only a small amount of light coming through a heavily barred grill.

"That's how you restrain someone," Kate smiled. "I hope you find it secure enough."

"Although maybe I should also tell you about the extra security feature," she continued as she pulled her skirt out from underneath her and stretched her legs out in front. "The top of this box is fitted with a highly sensitive pressure meter which right now is sensing my bum sitting on top of it. If I press this button here, the sensor will scan and remember the exact shape and weight of my bum."

Kate pushed the button and watched as the green light started flashing and then after about ten seconds turned to red. "That's it, the box is now double-locked!" she smiled as she retrieved the key and tried in vain to turn it in the lock. "Now this is the nice bit, the only way to release the double lock is for the sensor to sense my arse again and until it does that, the box will stay locked and your head, my darling Nicole, will stay imprisoned inside."

Nicole heard Kate's explanation through the small grill that allowed air into the box and she started to try and pull her head out.

Kate sat down on one of the stools and smiled as she watched Nicole's efforts. "I'm about the same size as you," Dania said to Kate. "Give me the key and I'll try to open it." Dania sat down on the box and like Kate, pulled her skirt out from underneath her. She pressed the red button and waited. After a few seconds the red light flashed.

"Looks at though my arse is pretty unique," Kate smiled.

Guessing that Kate was a little lighter than her, Dania took some of her weight on her arms and again pressed the button. When that failed, she pushed down a little harder with her thighs to try and replicate Kate's strong legs. Dania finally turned to Kate and said, "Turn around and show me your butt!"

Kate laughed. "When a prisoner is trying to escape from prison, she doesn't get to see the shape of the key."

Dania smiled, "I know, but without a quick peek, Nic's chances of escape don't look good!"

Kate did as she was told and lifted her skirt. Dania came over knelt down and ran her hands around Kate's hips. "Are you sure you are close enough?" Kate asked as she reached behind her and pushed Dania's face into her black silk knickers. "The shape is now imprinted on your face," Kate smiled as Dania returned to the box and continued to position her bum so as to match Kate's.

"I give up," Dania finally conceded.

"See I have a unique bum," Kate smiled as she walked over and sat down on top of Nicole's head. She pressed the button and within a few seconds the light turned green.

"That's amazing!" Dania replied as she inserted the key in the lock and finally opened the heavy steel box.

Nicole climbed to her feet and looked across to Kate. "It is definitely your turn now…" she purred.

"No way," Kate replied, "this is just too scary and secure".

With that, Nicole took Kate by the hand and forcefully pulled her over to the box. She held Kate's head in place and smiled. "OK Dannie, show me how this works."

Dania slowly sat down on top, closing the box with Kate's head inside. When it finally closed the locked clicked and Kate fate was sealed.

"I think I'll hold the key," Nicole purred.

Dania then pressed the green button and waited while the force she was exerting on the box was analyzed. The light then turned red, "Try and break that code, Katie!" Dania smiled as realising the time, she ran upstairs to change.

When Dania returned, Nicole was sitting on the box, but had given up trying to break the combination set by Dania's arse. "I have to go out now," Dania smiled, "and I'm just wondering whether I should let you out before I go," she teased Kate.

"Please!" Kate replied from inside the box. "Please let me out!"

Now wearing her jeans, Dania sat down on the box and pressed the button. However the light stayed red. "Don't know how to tell you this Katie, but not even my butt can get you out this time!"

"Are you wearing the same clothes?" Kate asked.

"Good point, those jeans are quite tight, they probably change the shape of your butt" Nicole observed.

Dania slipped out of her jeans and again sat down on top of Kate's head and again the light stayed red. Dania was starting to get worried, although Nicole was starting to smile.

"Have you changed your panties?" Nicole asked. "Those white ones you were wearing before had a word embroidered across the back. While Dania continued to try to unlock the box, Nicole ran upstairs and found Dania's knickers.

"Katie, these may be your only hope of freedom," Nicole smiled as she held up Dania's used panties.

Dania took off her new knickers and put the old pair back on. "I think they were riding up my butt a bit," Dania said as she adjusted them on her backside. Dania sat down above Kate's head again and pressed the button. "Your lucky day!" she purred to Kate as she watched the light turn green.

Dania jumped up and changed back into her jeans. "Have fun girls," she smiled as she blew Nicole a kiss.

Once Dania had left, Nicole went over to the box, pulled down her knickers and pulled up her skirt and sat down so that her bare bum was resting on the box. "I'm totally naked on top of you," the blonde smiled as she pressed the button and the green light turned back to red.

Nicole pulled up her panties and knelt down by where Kate's head disappeared into the steel box. "At least you know what my arse looks like, so you should be able to describe it to any rescuer," she smiled. Nicole then ran her fingers down Kate's body to her skirt. She lifted her skirt to reveal Kate's black knickers. "And to think that when I was incarcerated just now that your little butt was the only thing in the world that could free me," she purred, "and now my naked bum is the only thing that can give you back your freedom."

Nicole bent over and kissed Kate's knickers. She then turned Kate over so that she was on her side. She lifted Kate's top leg and put her own head between Kate's thighs. She then pulled Kate's leg down on top of her enclosing her inside. Kate soon complied with Nicole's wishes and tensed her legs tightly around Nicole's neck.

Nicole finally grew tired of playing and stood up. "I suppose you'd like me to sit my naked butt back down on your head?" Nicole smiled as she did just that. The box remembered Nicole's butt and duly opened. Nicole turned the key in the lock and opened the box.

"About time!" Kate exclaimed as she climbed to her feet.

"What was the rush?" Nicole purred back.

"My dinner appointment!" Kate replied.

"OK, but before you go can you just sit down for a moment?" Nicole asked. Kate turned around and saw Nicole's head already positioned in the box.

"Look I'll be out until the early hours," Kate explained.

"Please Katie!" Nicole begged. Without replying, Kate lifted her skirt and sat down closing the box beneath her. It clicked shut and she removed the key from its hole. She wriggled her arse until she was sitting nicely on the lid and then pressed the button and watched the light change to red.

"One day I might decide to keep you as a permanent sex slave," Kate purred as she ran her bare feet along Nicole's toned body. Kate stood up and smoothed her skirt back down. "Maybe I should also make you wait for your fun until I return," Kate smiled as she picked up two sets of handcuffs and taking each of Nicole's hands in turn locked them to metal rings welded on to the box. Nicole's hands were now secured up by her head and far away from her knickers.

Kate took the handcuff keys and tucked them inside Nicole's panties. "So near and yet so far," she joked as kissed Nicole on the bum. "And don't even try to escape from the box," Kate smiled as she tapped herself on the arse.

"There really is only one key to release you!"