The stunning actress stars alongside Jon Hamm and Zach Galafianakis in the new action-comedy
Fans of Isla Fisher are in for a treat in her new movie Keeping Up With the Joneses - when the star strips down for her on-screen hubby, Zach Galifianakis.
In a new clip exclusive to the Sun Online, the 40-year-old actress is seen whipping off a negligee to show her husband s-xy lingerie hiding underneath.
Zach and Isla play the timid suburban couple Jeff and Karen Gaffney, whose lives are turned upside down in Keeping Up with the Joneses by their new neighbours.
Mad Men's Jon Hamm and Wonder Woman star Gal Gadot star as the Joneses - espionage specialists who unwittingly turn their new friends lives upside down.
The scene with Isla's Karen happens after she is confronted by stunning leggy model Gal in the lingerie store.
Karen is soon embroiled in the pair's dangerous lifestyle, and promises to be explosive as the couple are forced to defend themselves.
When Karen starts suspecting there is more to the super-accomplished Joneses than meets the eye, and decides to follow Natalie - winding up in a lingerie store.
The super confident Natalie then confronts her and tells her: "I was just leaving Tim a voicemail. He likes to hear from me when I'm trying on lingerie, it's one of our things. Do you and Jeff have a thing?"
The humbled Karen then reveals: "We do it really fast in case the kids come running into our room."
From the next scenes, it looks like Karen is willing to spice up her relationship - with s-xy results.
Isla, who has two children with her off-screen actor husband Sacha Baron Cohen, looks age-defying as Zach's mouth drops to the floor - and we're pretty sure that wasn't entirely acting!