rear-mounted postural exercise device

so i’ve “designed” what feels like a brand new kind of posture training device to me. it’s very much like the usual neck-to-arm setups, but this one goes from neck down to butt. Image Drawing on my own body experience (lol), I managed to make a firm butt plug that is just barely longer than what can physically fit inside me. This leaves only an eyelet exposed outside. Then, a posture bar connects from the neck collar down to the butt plug. The device was made by repurposing an old vibrating plug that had died; I removed the vibrator mechanism and attached it to a dowel. Here’s a photo series of my test: … -a-success - you can see me getting ready, inserting the device, and testing it out. I was wearing a nice body stocking with some nipple clamp devices on for extra fun:D (cb6k is also in play >_>) The results were excellent. Because of the length of the posture bar, I couldn’t “push” the plug out, nor could I stray much from the upright position; any forward bending was heavily restricted because the bar pulls directly against the plug, which just goes like “lol, nope”