Warning! This article contains major Sex/Life spoilers.
The eighth episode of the saucy Netflix series sees Billie embark on an affair with her ex Brad after months of fantasising about the wild sex life they used to have.
Sarah, who plays Billie, said she was surprised to see her character betray her husband Cooper – something that has divided viewers.
Speaking to E! News, she said: “My jaw was to the ground pretty much at the end of every episode. But, I definitely didn’t expect for it to go there because, you know, you keep hearing Billie over and over again, and she says, ‘I love my husband.’”
Responding to some accusations that Billie’s decision is selfish, Sarah continued: “She’s not ignoring her children, she’s not ignoring the needs of her husband. There is just a part of her that’s missing, and she’s really struggling trying to feel it again.”
Admitting she loved the finale, Sarah added: “For me, what it comes down to is having the guts to say I want more and going after that. And that doesn’t make you a bad parent to want that. You can still be a wife and a mom and be a sexual goddess at the same time.”
While a second series has not yet been confirmed, Sarah – who is in a real-life relationship with Adam Demos, who plays her on-screen lover Brad – said that if Sex/Life does return, fans should expect “the fantasy will continue in some way or another, because it sure is fun to watch”.
The raunchy US dramedy has risen to the top of Netflix’s most-watched chart since its release last month, and has taken the internet by storm – part in thanks to a gasp-inducing full-frontal scene in the third episode.
Sex/Life is available to stream on Netflix now.