Michael Sheen and Lizzy Caplan steamed up viewers’ TV screens as real-life sex researchers Masters & Johnson in the freshman season of Masters of Sex, and a new trailer for the upcoming season promises things will be getting even hotter.

Now that Masters (Sheen) has declared his true feelings for Virginia (Caplan) — “There is one thing I can’t live without,”; he declared in the final moments of the season finale. “It’s you.”; — expect their extracurricular activities to become even wilder than the “experiments”; taking place in their office.

The second season of Masters of Sex debuts on Sunday, July 16.