Hannah knew Shawn was going to surprise her after her shift at the store today. It was Friday and they usually went venning on Fridays to spend the weekend together. She just had not expected him to venn without her.

The box was on the floor between the bed and the wall on his side of their bed. The last time he had been the box had been fun for her but she was surprised that he had somehow been turned into a box again. His friend Anton must have helped him.

Calling what Shawn had been venned into a box was a bit reductionist. The box was the size of a coffin, fully rectangular with rounded corners. It appeared to be made of a reddish wood, teak perhaps. Who knows what venned wood was actually made of. There was a simple brass latch on one of the long sides and three brass hinges along the other long side. These fixtures were the only indication that the box could open as the fit of the lid to bottom was so true there was no seam when the box was closed as it currently was.

It was otherwise unremarkable. Hannah knew the interior was quite interesting. She lifted the lid. It opened silently and there appeared to be actual oil on the hinges. The interior looked like a kind of white foam. Cut into the foam was a life-sized silhouette of the backside of a woman: specifically, her backside. The interior of the lid was a silhouette of the front side of a woman.

Just looking at the shape of the cut-out made Hannah a bit horny. When she first confessed to Shawn that she was turned on by being immobilized, they experimented with various forms of bondage. It worked well for her but it was never enough. Even mummification wasn’t enough. She wanted something that completely locked her in place. They had also tried venning her into inanimate objects. For some reason she could not quite explain, that wasn’t what she wanted. She wanted to be capable of motion while simultaneously completely unable to move.

A few weeks ago, Shawn had told her about his box idea and they had tried it. She had enjoyed being trapped inside Shawn but it still wasn’t total immobility. He said he would figure it out.

Her hand brushed the interior of the box and the interior rubbed her back. She pulled her hand back in surprise. He had made the interior able to move. She could not take her clothes off fast enough.

She lay down within the cut-out for a moment enjoying how it was contoured exactly to the shape of her body. She reached up to pull the lid down but it would not budge.

“Put both arms in the forms,” Shawn’s voice whispered into her ears.

“You can talk?”

“Why not?”

She giggled and did as he said. Once her all of her fingers were flat between the indentations, the lid slowly lowered itself. Agonizingly slowly. As the lid’s cut-out enveloped her, she could feel the interior of the lid and the interior of the bottom fuse together tightly around her fingers, her arms, her legs, her breasts, her hips, her waist, between her toes. It continued to embraces her somehow flowing into her bellybutton, into the crevices of her earlobes, holding her jaw in place, pressing firmly yet gently against her eyelids.

She tried to move and found she could not twitch a finger or bend a toe. The interior held tight against her diaphragm as she breathed in and out.

“Feeling snug as a bug in a rug?” he asked.

She made an “uh-huh” noise that didn’t require her to move her mouth.

“Phase two.”

She felt the interior push into her nostrils and after few seconds realized she could not breathe. A nub pushed into her mouth, opening it wide and pushing inside. It felt like a cock was entering her mouth. The end of the phallus was open and air entered and exited through it.

Finger-like nubs pushed in to the upper part of her pussy to stimulate her clitoris. As this happened, phallus shaped protrusion entered her pussy and continued down her vag. “You’re so wet,” he said. The feeling of being filled down there was incredible.

“Ahh,” she managed to say as all this happened.

Fingers rolled along her limbs and torso in a massaging motion. She was instantly overstimulated and then it stopped.

“Huh?” she grunted.

“I’m sucking-powered.”

She immediately started sucking on the cock in her mouth. The stimulation resumed.

Mouths formed around her nipples. Fingers rubbed her breasts in concert with the mouths sucking her nipples. A shaft pressed into her ass when she wasn’t fully aware.

It wasn’t long before the assault on her senses resulted in body rocking orgasm. Her toes pressed against their imprisonment, failing to curl. Her back wanted to arch but didn’t. These and all the other restrictions on her movement multiplied the intensity of it. Her body orgasmed a second time with seconds of the first one.

The full body torment relaxed. Protrusions still invaded her orifices but the only stimulation that continued was the massaging of her limbs and back muscles. She was breathing heavily through the phallus in her mouth.

“Just start sucking again when you want to go again.”

She just lay there as her body, still locked in place, sent aftershocks to her mind that her immobile body could not shake off. She fell asleep.

When she woke up, she was still locked in place. Fingers continued to massage her muscles. She was immediately turned on by her predicament and sucked on the cock in her mouth.

Her breasts were sucked gently. The cock in her pussy slowly moved in and out. The massaging fingers became caressing fingers. Her desire for more increased and she sucked the box harder. The box responded in kind.

Over and over this cycle happened until she fell asleep for several hours. When she woke up, she was no longer impaled in all three of her orifices. The massaging fingers were gently keeping her major muscle groups relaxed.

Lips formed on her lips and the box was kissing her. She kissed back. It felt like arms were hugging her while they kissed.

“Good morning,” he said and the box’ grip on her relaxed. She heard the latch open and the lid to the box lifted off of her.

She just lied there for a moment, the fingers were still massaging her backside. A sharp pinch on her ass caused her to jump up a bit. She shouted, “Hey!”

“Time to get up,” he said in her ear. “You need to get ready for work.”

She sat up and looked at the clock. It was exactly eight-thirty. She had ninety minutes to get to work. It was exactly when she wanted to wake up on Saturdays before her ten o’clock shift.

“Thanks, Shawn.”

“Don’t talk to a box,” it said. “People will think you’re crazy.”

She smacked her hand into the interior of the lid. “How long is your venn?”

“A month.”

“A month? I don’t think I can do that thirty more times.”

“I’m more worried you won’t be able to sleep in a normal bed after a month.”

“Don’t give me ideas. It would be a shame if you had to stay like this forever.”

She stepped out and the lid lowered on its own. “We’ll see,” his muffled voice replied.