You immediately start using it

Sitting on the floor, relishing the feeling of this strange new diaper on your skin, you don't even get a chance to ponder the potential consequences before you feel the padding getting warmer and wetter. You sharply turn your gaze down to see the writing and the runes light up gold, still barely able to feel the release of urine into your padding aside from the wetness in your diaper.

Your nervous system all seems to get fuzzy, your chest and crotch especially, but a little of the fuzziness spreads even to your fingertips. You're struggling to stay coherent at the fuzziness is felt in your head and down your spine, all while you uncontrollably leak urine into your diaper.

Despite the fuzziness, you can feel a hot, almost burning sensation in your most sensitive regions, as well as everything shifting. Shrinking, growing, lengthening, shortening, and even your skin seems to change. Something soft but firm pushes against your butt, which you quickly realize is a growing log of shit forcing its way out of your asshole. White hot ecstasy burns through your core as your sex organs seem to shrink before disappearing, leaving just a vague patch of featureless sensitive tissue and a tiny, leaky hole spurting piss.

Everything related to gender has been either balanced between masculine and feminine or erased entirely. Now you have only the tiniest bit of fat over the chest, no significant width to your shoulders or hips, or narrowness to your waist. Your body has become very rectangular, your face a perfectly androgynous oval structure, your hair a simple short style, and even your pheromones would smell perfectly between male and female to any creature capable of smelling it.

You feel almost like you'd orgasmed a dozen times, yet the flat, doll-like patch of sensitive tissue where your genitals once were still throbs with desire, fueled even more by the warm, wet, and messy feeling of your heavily used diaper. The hot, mushy shit against your featureless crotch spurs you on to begin rocking back and forth, grinding your toylike nether region against your swollen padding until you cum one last time, grunting sloppily after the overwhelming event that just transpired. You throw yourself onto your front, lying on the floor breathless.