Latex Kigurumi with Mouth Opener

Special Notice: The head cage is the Gel-Ai M1 from lightning520. Due to its tight fit against the face, it cannot be closed after attaching the mouth opener, so this creative idea is only achieved through simulation.

After seeing the concept art from the BM boss about binding K9 legs together to create a kneeling posture, I wanted to give it a try, but folding the legs for kneeling is quite challenging.
Shiyu eagerly agreed to the plan, perhaps not yet realizing its intensity.
She put on the latex suit, ballet boots, and K9 leg covers, but the real difficulty was just beginning.
Binding her feet in a folded-leg position was quite troublesome, and both of us were exhausted, fumbling to figure out how to combine the available props to match the concept art.
After a lot of effort, Shiyu mentioned that her feet were already numb, but we hadn’t even started yet.I then put a single-glove restraint on her, helped her up from a prone position, and secured her with chains to a gantry frame to ensure her balance.
The four chains still caused Shiyu to sway unsteadily, requiring her to struggle to maintain her center of gravity.
Feeling reassured, I activated the vibrator inside her. Though it wasn’t perfect, we managed to pull it off, albeit barely.
This posture was indeed torturous. Shiyu’s cries revealed her discomfort, constantly complaining about numb hands and aching legs.
Later, sobbing sounds emerged, growing more intense. It was a pity—I could only see her RQB expression.
I knew this was her limit, so I took her down. Shiyu continued crying for a while, so I gave her a small reward, carrying her to the couch to let her relax and feel some pleasure.
Her condition recovered, and with the help of the vibrator, she quickly transformed back into a trembling doll.
Beneath the head cage, her mouth was fitted with a mouth opener similar to the one on the head cage.