The doctor, clad in his crisp white coat, takes charge, his voice firm yet comforting. He prepares the enema, explaining each step, his hands deftly handling the equipment. The twink, his heart pounding, spreads his cheeks, revealing his pink, untouched hole. The doctor lubes up, pressing the tip of the enema nozzle against the resisting muscle, pushing gently until it yields, allowing the cold water to flow in, filling the twink's insides. He gasps, his body squirming as the doctor massages his belly, guiding the liquid deeper, the twink's cock leaking pre-cum, his breath ragged with new sensations.