'She's the perfect 10, lemon tart, double D!' Cameron Diaz is left speechless by Kate Upton's flawless bikini body in new The Other Woman clip

Perfect 10: Kate Upton shows off her incredible bikini body in a tiny white two-piece in a new clip from upcoming comedy The Other Woman

She's not the kind of woman who feels insecure easily. 

But Cameron Diaz is left speechless by Kate Upton's incredible bikini body in a new clip from upcoming comedy The Other Woman. 

The film tells the story of Cameron's character Carly, who is left stunned when she discovers that her boyfriend Mark (played by Nikolaj Coster-Waldau) is married to Leslie Mann's character Kate.

And after discovering that Mark is cheating on them both with another woman, Carly and Kate team up to discover the identity of the third culprit. 

The clip from the movie shows Carly and Kate hitting the beach for a spot of 'light recon'. 

However, while Carly seems entirely unconcerned about the mission at first, it's only when Kate expresses her shock at seeing Upton's character Amber in a teeny white bikini that her interest is piqued. 

Watching as Amber enjoyed a slow-motion stroll out of the sea and onto the sands, Carly and Kate can't hide their amazement at her truly incredible beach body. 

When Kate asks: 'Do you think she had that bikini made?'

Carly replies: 'No she didn't have that made. When you have a body like that, everything fits you perfectly. 

She's like the perfect 10, lemon tart, double D... obviously.'

Kate then likens the situation to a game of tennis, telling Carly: 'You know, it's like, I play tennis but if I play against John McEnroe - I'm going to lose.'

But her metaphor only serves to further anger Carly, who screams: 'I am McEnroe!' before taking off down the sand bank. 

Realising that Amber seeing them might mean the end of their mission, Kate follows hot on Carly's heels before rugby tackling Carly to the ground - right in front of a bemused Amber. 

The clip ends with Amber asking the two women: 'What are you doing?'

The Other Woman is due for release on April 25th.

Dressed to impress: Leslie, Kate and Cameron looked incredible in their outfits at the premiere of The Other Woman in Holland on Tuesday night