Diaperfag futile effort to get off

My pathetic cock is locked in chastity, straining for release. My diaper is 15 layers of thick, squishy heaven, filled with J-lube and melted Vaseline that has leaked out of my gaping asshole. My ass is currently stretched to its limit with an XXXL Square Peg Egg Plug- the mass and diameter of the plug is so big that my involuntary muscles have given up on trying to push it out. I’m left breathless & dazed, the massive bulk in my rectum pressing against my prostate, my tiny cock throbbing in its cage. I desperately try to get off by humping my diaper until I wear myself out.