In a sleek, modern dungeon, a solitary figure stands before a towering, mechanical phallus, a testament to Doctororal Mn's creative genius. The machine whirs to life, its cold, metallic cock glistening with lubricant. The rider, their identity obscured, straddles the beast, their breath ragged with excitement. The machine's rhythmic thrusts are relentless, a test of endurance and desire, as the rider's body responds, their wetness coating the mechanical cock, the room filled with the symphony of flesh against cold metal and the rider's ragged moans.