Lizzy Caplan's First Sex Scene With Michael Sheen Did Not End Well

One clammy-handed grab, and...

Lizzy Caplan was on "Conan" last night, where she opened up about her work on Showtime's "Masters of Sex" -- and told a terrific story about her first steamy scene with co-star Michael Sheen.

Actually, it's so terrific that we would truly be jerks to ruin its punchline here. But let's just say, by way of a teaser, that neither Lizzy nor the nearest garbage can was ever the same again.