Bound Rena - Part 2: Casted and Shocked

It has only been a day after the last intense session, but Rena didn’t get her usual rest.

She will be bound again, but this time, she won’t be tied down by ropes. Rena is made to lie naked on her back inside a long wooden box of her size, the top is kept open. The box has small holes all around it’s side, What’s Mistress Ju planing this time?

Mistress Ju wants to try something new today, and she knows that Rena needs some rest from penetrations. Ju placed a ball gag on Rena’s mouth and strapped it behind her head after lifting her long and silky black hair.

Ju pushed a wooden rode through the side of that box, it went over her leg. The next one over her belly, and another right above her soft breasts. Ju pushed a few more rodes in, leaving no holes open in that box, securing Rena in a small prison box of her size.

After making sure that Rena was secured, Ju lifted the box from the top side with a hoist. Rena felt like a showpiece, but she liked it, after all, she has forniphilia. Rena is sure that this is not the end, Mistress Ju always makes her heart beat fast, and this small prison is not enough for her.

Ju applied some silicone rubber adhesives around the tiny gap between the rodes and the holes, completely sealing them airtight. After making sure that all holes were sealed, Ju brought a door for that box. There is a small window on the top which will leave Rena’s head exposed.

Ju stuck a few electrode pads around Rena, two on her nipples, two on her waist, and another two under her feet. The wires are dangling, and they are thin.

After decorating Rena with electrode pads, Ju closed the door and pulled the cables through the top hole. Rena want’s to bite the cables and pull them off, but alas, she can’t do it with that tight ball gag in her mouth.

Ju pasted the adhesive around the door too. Rena was scared, and Ju could see it in her eyes. “It won’t hurt much, dear, I’ll remove the gag once I’m done with the preparation.” Ju said with a gentile smile and left the room.

After a few minutes, Ju brought a giant barrel on wheels next to Rena, it’s full of some while liquid.

Ju: “Well, we don’t have much time, you understand what’s going to happen, don’t you?”

Understanding that she will be cast in plaster, Rena nodded.

It’s a bit scary, but not as scary as being shocked while being underwater, like Rena first thought.

Ju had a big a funnel with her, after placing it below Rena’s neck, Ju started poring the plaster into the funnel and said, “This is going to take a while, I just hope that it won’t harden before it reaches your breasts, that would be a shame”.

Rena could do nothing but wait, she could feel the still warm cast raising below her.

After sometime, which Rena felt like an hour, Ju stopped pouring the cast after it rose above her breasts. “That’ll do, you can feel it hardening already, don’t you?” Ju asked. The cast is already hardened around Rena’s knees, so she nodded.

“I’ll play some music so you won’t get bored, do you want something to drink, my pet?” Ju asked while scrolling through her playlist.

Mistress Ju is kind, but also mischievous, sometimes you can’t tell between the two. Rena shook her head to say no.

“Good call, it would be a problem if you try to pee while in the cast.” Ju smiled and shuffled her playlist before playing it. “I’ll be back after 30 minutes, don’t move around, okay? I want to make a silicon sex doll out of your figure” Ju said before leaving the room.

The room does not have a clock, and, Rena has never been let to see time while with mistress Ju. “Pets don’t need to see time, they should know it” is what Ju said before Rena signed the contract. But Mistress Ju usually provides clues, this time with songs, and all of them are about 3 to 4 minutes long. So Rena just needs to listen to 9 or 10 songs before mistress Ju returns.

After the 9nth song, Ju returned and pressed on the cast through the top hole. “Hmm, feels like it’s hard enough” She opened the front door with a crowbar, and started ripping off the rest of the sides with it. If there were no wooden rodes, the cast would be a perfect rectangle, but mistress Ju had to make sure that Rena wouldn’t move even accidentally, and she sees that imperfection on the cast as a design.

Now that Rena is bound in a plaster box, Ju removed the ball gag. “Are you ready, my pet?” She asked with a smile.

“Y-Yes mistress” Rena replied, knowing that noting but electric shocks are awaiting her.

Mistress Ju inserted all the cables in her TENS unit, and like always, she started with small shocks. The lower settings feel like a small vibration, it stings at first, but you’ll certainly get used to it. Ju has used this device on Rena multiple times before, and she always starts it in the lowest setting to prepare Rena.

“Did you enjoy the machine the other day, my pet?” Ju asked while changing some settings.

“Yes mistress” Rena replied. “I know you did, the machines never get tired, and you, my pet, can take a pounding better than all my other pets.” Ju smiled and rubbed her fingers on Rena’s lips.

“I think you liked the machine a little too much, so, here is something for you. I’ll set this shocker on random, if you could take it until I stop without saying the safeword, I’ll let you ride that machine again, what do you say?”. Like always, Ju is showing her mischievous side, she didn’t say how long the machine will run, and Ju will punish Rena if she asks a question. The response should always be “Yes” or “No”, and nothing else.

Rena should now in a predicament, in more ways than one. But she knows what she must say, she couldn’t sleep last night well thinking about the machine, she wanted it to rearrange her insides again, so naturally, she said, “Yes mistress”.

Surprised and delighted by how quick Rena said yes to her question, Ju pressed the button to run the device in random pattern and intensity. She has already configured it to not go above the tolerable level for Rena, but this will surly be a torture for her.

Ju sat on a chair to enjoy the show, and she had brought some popcorns with her, this will be a long day for Rena.