Kristen Bell Kristen Bell

House of Lies star Kristen Bell says that shooting this season's sex scenes with her co-stars Adam Brody and Don Cheadle was extra awkward — because she was seven months pregnant with her daughter, Lincoln.

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"I was pretending to act in a sex tape, and now I can forever look at my daughter and say, 'Oh, you were present for that,'" Bell told Conan O'Brien in a recent interview. "[Brody] affectionately refers to our sex scenes as our threesomes, because my belly was just on top of him."

Admitted Bell: "I tried to work it."

Bell and her husband, Dax Shepard, welcomed Lincoln last March, two weeks after House of Lies wrapped.

Watch Bell's interview on Conan below: