Full session penalty standing with vibrator breath control and loss of consciousness

Since that one casual play session with Shigure, where I pushed her to a state of blissful unconsciousness, it’s been her most profound experience in a long time—so profound that she even wrote a short essay about it.
Unfortunately, that was just a casual session, and we didn’t record it, so I’ve been eager to recreate it ever since.
However, replicating it exactly has proven difficult, so I’ve been trying to get close under various conditions.

This time, it’s another glossy black series, mostly matte black, with the coated texture giving a unique sensation.
Her feet were cuffed to either side of a gantry frame, with a crossbar keeping her legs spread, so even if her feet got tired, she couldn’t change her position.
Using the vibrating toy holder from the restraint chair, I extended it to the perfect position, ready to disrupt her breathing rhythm throughout.
A waist corset from BM was fastened around her midsection, secured with four chains pulling in different directions, ensuring her waist couldn’t move and she couldn’t escape the vibrating toy.
Her hands were left unbound for now, as I wanted her to hold up her skirt to display the adornments underneath.
The headgear was divided into several chapters. Chapter one was a patent leather hood, a limited-edition item from BM.
The patent leather hood was tight and thick. After putting on a Zentai hood, forcing the leather hood over it completely filled any space. Since the breathing holes of the two hoods didn’t align, Shigure struggled to breathe with both on.
In this state, the vibrations under her skirt began.
For chapter two, I forced a non-porous latex breathing hood over the patent leather hood. However, due to the size and material of the leather hood, the latex hood could only be half-applied, leaving a large portion as breathing space.
Despite the extra space, the multiple layers of breathing restriction still caused Shigure immense discomfort. Her hands were now suspended, and when she felt overwhelmed, she could only helplessly stomp her feet.
To fully utilize the non-porous breathing hood, I removed the patent leather hood and properly fitted the latex hood.
The non-porous hood was torturous, forcing her to breathe her own exhaled air, quickly leading to discomfort—especially while being stimulated by the vibrations.
Soon, Shigure was gasping heavily, sucking the hood into her mouth. The thin latex material outlined the shape of her teeth.
As her breathing grew more desperate, the hood was nearly pulled into her throat, and she began to struggle to plead for mercy.
Shigure’s feet were already sore from standing, but I didn’t let her off. Chapter three introduced a gas mask.
The last time Shigure reached that euphoric unconscious state was with a gas mask and breathing bag, and I wanted to see it again.
First, I played with a negative pressure bottle, pouring in a yellow liquid. Shigure said every breath was filled with that smell.
This time, I filled it more than halfway, and each inhale was so intense that it dented the gas mask.
By now, Shigure was mostly broken—her feet were exhausted, her suspended hands were numb—and that’s when I introduced the breathing bag.
In the final stretch of the breathing bag session, after enduring three minutes of torment, Shigure finally lost consciousness.
Her feet gave out, and she hung limply by her suspended hands, her body twitching.
I quickly removed her mask but noticed she still wasn’t breathing. I repeatedly slapped her face to wake her.
After several slaps with no response, I realized her mouth was clenched shut. I pried it open, slapped her again, and finally heard her breathe.
When Shigure regained consciousness, her voice trembled with sobs, her legs dangling powerlessly as she hung. This time, I had truly broken her, and the chaos was palpable through my lens.
Thankfully, after a short rest, Shigure recovered, ready to receive her reward of forced orgasms.