The Fall of the Demon King's Pride
Read the storySai Akuto (from Demon King Daimao) stumbles upon a strange magic that makes his cock more sensitive. Using it, he experiences unexpectedly powerful results. Almost every touch makes him cum. Sai's enemies stumble upon him while he's jerking off. They respond to his moans and move on. Muscular men fuck Sai from every angle, and he can only moan as his dick turns into a useless tube, no longer ejaculating, but simply leaking. From the constant orgasms, Sai loses his pride and masculinity and mentally transforms into a woman.