[Madeverette] Lu's Bladder Torture (Ongoing) [Pixiv / Twitter]

A collared tomgirl kneels trembling at his smiling mistress's feet, begging for even a little relief while a cutaway view exposes a bladder stretched to its limit and plugged shut. She dangles a cruel game before him—win and he may finally pee—but when he breaks down in shivering apologies, her playful fingers punish his leaking cock with sharp flicks and press hard against that taut, swollen belly. Sweat, tears, and desperation pour off the sobbing pet as his mistress watches with unhurried, delighted control.