Oh, we're so happy this series is back! Masters of Sex centers around the work of Dr. William Masters and Virginia Johnson (played by Michael Sheen and Lizzy Caplan). This new trailer for the second season strongly implies that the work of pleasure is about to get pretty hot.

Of course, if you're familiar with the lives of these two scientists, you know how it all turns out, but dammit if it's not incredibly engaging to watch. Lizzy Caplan is just amazing in this series. The new season will premiere on Showtime, July 13th.