Megan Fox wears a braless top in a low cut top

Megan Fox wears a braless top in a low-cut top to lunch in London with fiance Machine Gun Kelly

Megan Fox is braless in a busty cutout top with a huge fur hat as she meets fiancé Machine Gun Kelly for lunch in London

Megan Fox looked incredible as she headed to London for lunch with fiancé Machine Gun Kelly on Sunday.

The 36-year-old actress wore a bright green busty cut-out top and a whimsical faux fur hat braless for her outing.

She showed off her toned abs as she slipped into chic black pants and peep toe heels to complete her striking look.

Stylish: Megan Fox, 36, looked incredible as she headed to London for lunch with fiancé Machine Gun Kelly on Sunday

Stylish: Megan Fox, 36, looked incredible as she headed to London for lunch with fiancé Machine Gun Kelly on Sunday

Megan wore her brunette tresses straight and opted for a full face of tanned makeup while sporting a fur and leather trench coat slung over her arm.

MGK, 32, wore a Louise Vuitton flight jacket with a fur-trimmed collar with a black T-shirt and jeans.

He completes his look with orange tinted sunglasses and a chunky necklace.

Whimsical: MGK, 32, wore a Louise Vuitton flight jacket with a fur-trimmed collar

Whimsical: MGK, 32, wore a Louise Vuitton flight jacket with a fur-trimmed collar

Admiring crowd: He added a black tee and jeans while posing for a photo with fans

Admiring crowd: He added a black tee and jeans while posing for a photo with fans

It comes as MGK brought his daughter Casie, 13, on her ‘first European tour’ – and documented the results on Instagram.

The singer took his teenager to Paris and took them around the city to see the famous sights including the Louvre Pyramid designed by IM Pei.

After playing tourist by day, he partied at night in the City of Lights with his bombastic fiancé Megan.

Alternative: He completes his look with orange tinted sunglasses and a chunky necklace

Alternative: He completes his look with orange tinted sunglasses and a chunky necklace

Family time: It comes as MGK took his daughter Casie, 13, on her 'first European tour' - and documented the results on Instagram

Family time: It comes as MGK took his daughter Casie, 13, on her ‘first European tour’ – and documented the results on Instagram

He featured in his new Instagram album, which took Casie to visit American fashion designer Rick Owens’ Paris studio.

At one point, Kelly even posed in a crazy chair meant to resemble Rick lying on his back with his legs folded in the air.

The rapper Emo Girl – who shares his daughter with his ex Emma Cannon – donned a long vest covered in pink faux fur.

His nine million+ followers were also treated to a few pics of Kelly enjoying a night out on the town with Megan, Casie and some friends.

What a night: His nine million-plus followers were also treated to a few pics of Kelly enjoying a night out on the town with fiancée Megan, Casie and a few friends

What a night: His nine million-plus followers were also treated to a few pics of Kelly enjoying a night out on the town with fiancée Megan, Casie and a few friends