Lauren Silverman slips into sexy one-piece for jet-skiing with beau Simon Cowell

Lauren Silverman looked phenomenal as she hit the beach during a sun-soaked Barbados getaway.

Simon Cowell's girlfriend, 42, flaunted her enviable curves in a very sexy one-shoulder swimsuit as she explored the beach with her beau and their family.

Showing off her ultimate beach babe style, Lauren was accompanied by their son Eric, five, and her son Adam, 13, who she shares with her ex Andrew, as Simon enjoyed a jet-ski ride with Eric.

The mum-of-two looked stunning in the black swimsuit which featured a chic buckle detail at the strap.

Lauren looked fantastic in her one-piece swimsuit (SplashNews.com)

She dressed up her classic one-piece by adding a pair of statement shades and pinned back her dark hair into a loose ponytail.

She covered up her face with dark shades and looked glam (SplashNews.com)

Lauren didn't wear much make-up for her loved-up beach day and instead sported her natural bronzed complexion which she teamed with natural lip gloss.

Giving Simon a run for his money, she then joined the boys for a quick jet-ski ride in the blazing Barbados sun.

She showed off her tiny figure in the swimsuit (SplashNews.com)

He looked ecstatic to be with his family (SplashNews.com)

Meanwhile her beau gave everyone a glimpse at his newly-slim body once more, wearing a pair of swim shorts.

His weight loss secret comes after the business mogul switched to a vegan diet in a bid to live a healthier lifestyle after the birth of his son.

Simon whisks his family off to Barbados every year and it seems he's having the best time with son Eric in the candid snaps.

She flaunted her flawless complexion (GC Images)

Simon also showed off his slender frame (GC Images)

He's shed more than 20lbs in weight thanks to the new routine.

"I went to see this doctor in London. We did some tests. And then a month later he said, 'You have the worst diet I've ever met from any patient'.

"So I went, 'Okay, out of the smoking, the drinking, and diet, what do I have to drop?'

She enjoyed a jet-ski ride with Simon and Eric (GC Images)

Simon took them away on an annual trip (GC Images)

"And he said, 'The diet'. So I said, 'I'm in!'"

"It was easier than I thought, and part of the reason I did it was because of Eric.

Her sleek hair was pulled back into a ponytail (GC Images)

The business mogul holds a monkey on his shoulder (GC Images)

"I realised if I didn't sort myself out physically, I wouldn't be able to catch up with him.

"Because the minute he gets up to the minute he goes to sleep... their energy, you forget, at five years old, is phenomenal."

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