The lives of sexual researchers William Masters (Michael Sheen) and Virginia Johnson (Lizzy Caplan) are put on display in the upcoming Showtime series Masters of Sex, which debuts Sunday, September 29 at 10 PM ET with the Pilot episode. In case you wanted to check out the series early, the network has provided us with the full series premiere episode, which also includes an introduction from series stars Michael Sheen and Lizzy Caplan.

Click Here to watch the full pilot episode, but only if you are over the age of 18, due to nudity and other adult content.

Masters of Sex stars Michael Sheen and Lizzy Caplan as real-life pioneers of the science of human sexuality, William Masters and Virginia Johnson. Their research touched off the sexual revolution and took them from a Midwestern teaching hospital to the cover of Time magazine and multiple appearances on Johnny Carson's couch. He is a brilliant scientist out of touch with his own feelings, and she is a single working mother ahead of her time. The series chronicles their unusual lives, romance, and unlikely pop culture trajectory.