And why wouldn't they be, her husband, Rob Tapert, is the executive producer of the show.
Imagine your man watching you pretend to be with another guy.
That just screams "awkward."
However the actress told the Daily Record in England that Tapert decided not to come on set when she was working the sex scenes.
"Even though theoretically I don't have any issue with it, I like to think I am a modern young woman," Lawless told the Daily Record.
"It is really uncomfortable. You have to make the unsexy look incredibly sexy."
Lawless also joked that she has already started exercising in preparation for the upcomingSpartacus prequel.
"I am working out," she said.
"If they shoot the prequel, I'll have to look five years younger."