This summer will see Hollywood fixer 'Ray Donovan' paired up with Showtime's 'Masters of Sex' for the second season of either series, and things are only heating up. Not only has the first full 'Ray Donovan' trailer arrived, towing a heap of new guest stars, but William Masters and Virginia Johnson are front and center in some racy new looks at 'Masters of Sex' season 2.

As seen in the full trailer for Showtime's 'Ray Donovan' season 2, the Liev Schrieber fronted drama has added the likes of former 'The Michael J. Fox Show' star Wendell Pierce, ‘Simpsons‘ vet Hank Azaria as an investigator probing Ray’s illicit activities, 'Star Trek' star Brent Spiner in a therapist role, and 'The Hills Have Eyes' star Vinessa Shaw. Things certainly don't seem to be going Ray's way, as the fixer may end up buried alive by season's end.

And while they're not visible in the posters below, 'Masters of Sex' season 2 has added 'Smash' Star Christian Borle, Rene Auberjoinois, Courtney B. Vance, comedian Sarah Silverman as Betty’s ex-lover Helen, along with ‘Akeelah and the Bee’ star Keke Palmer in the recurring role of the Masters’ new nanny, and ‘American Horror Story: Coven‘ star Danny Huston as Dr. Douglas Greathouse, the privileged head of a hospital’s Obstetrics Department.

The current dead zone of summer TV has us amped for 'Masters of Sex' and 'Ray Donovan''s July 13 return, so check out the latest above and below, and give us your thoughts in the comments!

Masters of Sex Season 2 Poster Key Art
Showtime
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Masters of Sex Season 2 Poster Key Art
Showtime
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Masters of Sex Season 2 Poster Key Art
Showtime
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Masters of Sex Season 2 Poster Key Art
Showtime
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