Rebel Wilson shows off her slimmed-down figure as she returns home after a trip with her boyfriend

She’s been enjoying a romantic holiday in Monte Carlo with her new boyfriend Jacob Busch.

And on Thursday, Rebel Wilson showed off her slimmed-down figure as she returned back to Los Angeles after her weekend getaway.

The 40-year-old actress flaunted her physique in a black shirt as she shared a mirror selfie to Instagram.

In the photo, Rebel smiled as she held her mobile phone in one hand and placed the other on her hip.

‘Great to be back home and back to work ,’ she captioned the post.

The Hollywood star has been on a health journey this year, losing at least 18kg (40lbs or 2.8 stone).

According to People magazine, her remarkable transformation is partially down to following the Mayr Method diet plan.  

‘It’s an approach that eliminates food intolerances, reduces sugar, encourages eating whole foods slowly, boosts the immune system and reduces inflammation,’ a source said.

‘She exercises with a personal trainer up to six times a week, goes on walks and is trying to up her protein intake nutritionally.’

Meanwhile, Rebel and her new boyfriend Jacob Busch made their red carpet debut at the Planetary Health Gala in Monaco last week.

Jacob’s family founded the Anheuser-Busch brewery, which produces America’s most popular beer, Budweiser.

In 2016, Forbes listed the Busch family as the 16th richest in America, with a fortune of $13.4billion.

Jacob and Rebel’s 11-year age gap shouldn’t be a problem for the 29-year-old, who previously dated Real Housewives of Beverly Hills star Adrienne Maloof, 59.