African-American physician discovers contraceptive device, leading to pleas from patient to keep secret

African-American physician, a conscientious professional, stumbles upon a revolutionary contraceptive device. Eager to test his discovery, he entices a patient back to his abode under the guise of a routine check-up. The unsuspecting damsel is caught off guard by the doctor's explicit proposition. Intrigued, she consents to be the guinea pig, unaware of the erotic journey that awaits. The doctor, with a sizable member, engages her in a passionate encounter. The young lady, initially taken aback, soon succumbs to the pleasure and reciprocates enthusiastically. The doctor, sensing her enjoyment, takes her from behind, her moans of ecstasy reverberating through the room. The climax of this electrifying encounter sees the doctor warning his patient of the dire consequences of exposing their secret, a threat she takes in stride. This encounter leaves both parties satiated, their shared secret bound by the thrill of the forbidden.