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Sarah Silverman, Michael Sheen, MET Gala

Larry Busacca/Getty Images

Where better to make a red carpet debut than the Met Gala?

Sarah Silverman and Michael Sheen took things to the next level—Hollywood-style, that is—when they attended Monday's ball in New York City. The A Million Ways to Die in the West star knocked it out of the park in a voluminous Zac Posen gown, while the Masters of Sex actor suited up in Prada.

When a reporter asked Silverman how her dress feels, she joked, "It feels like a f--king second skin."

Sheen's ex-girlfriend Rachel McAdams was also at the event. The About Time actress, 35, looked angelic in a pale pink silk evening dress by Ralph Lauren; she didn't bring boyfriend Patrick Sambrook.

Silverman, 43, and Sheen, 45, began dating in February. Their romance is going so well, in fact, that they will soon become co-stars! Last week, it was announced that Silverman is joining the second season Showtime's Masters of Sex in a recurring role. Further details are being kept under wraps.