A young, slender twink finds himself in a medical clinic, his eyes darting nervously around the sterile room. The gay doctor, with a sly smile, guides him to the examination table, his gloved hands already slick with lube. "Now, let's check your flexibility," he murmurs, wedging his lubricated fingers into the twink's tight, quivering ass, stretching him wide. The twink gasps, his body tensing as the doctor explores his depths, the room filling with the sound of wet, sloppy friction.