Lizzy Caplan was just as surprised to learn about the plot changes in Season 3 of "Masters of Sex" and explained how they affected her view of Virginia Johnson, who she plays in the Showtime drama.

Season 3 of the critically acclaimed drama has received some criticism for focusing on the lives of the kids of Bill Masters (Michael Sheen) and Virginia Johnson, instead of on the two main characters.

The addition of a third pregnancy for Johnson and another child for Masters also made fans believe that the show was diverting from its historical plot line since the real sex experts, which the series is based on, did not have three kids each.

"It was... interesting, and a complicated obstacle to be thrown at us very early on," Caplan told The Hollywood Reporter about the changes.

"But it's Michelle's [Ashford] story to tell so I'll let her tell it or not tell it. I knew going in with a fair amount of time that this was something we were going to have to process. We're very lucky that our writers and Michelle, being the leader of said writers, are so smart, because a lesser group of writers would have buckled under this weird set of circumstances that we were presented with."

Caplan revealed, although it wasn't what she expected, she likes the changes and explained that all the actors on the show get to share input on what direction their characters should go.

"The additional kid changed how I viewed Virginia quite a bit because I knew this woman as a twice-divorced mother of two," she explained.

"Then what came with the additional kid was the re-marriage to my ex-husband, so there was a lot of stuff to wrap my head around. I wouldn't say it's necessarily where I saw the character going, but I do trust our writers and I like where the character is going quite a bit."

According to TV Guide, producer Michelle Ashford explained, at the Television Critics Association press tour, that the plot changes were a legal decision and not a creative one.

"We were advised to add children to protect the people that are still alive," Ashford said. "It wasn't a storytelling prerogative; it had to do with protecting living people."

"Masters of Sex" airs Sundays at 10 p.m. on Showtime.