She just can't help herself! Serial cougar Demi Moore, 50, splashes around with a younger man as she shows off her age-defying body in a bikini...

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She is said to be currently dating Lindsay Lohan's ex-boyfriend, Harry Morton, 31.

But it seems that before the pair hooked-up, Demi Moore was casting her eyes over yet another younger man during a recent vacation in Tulum, Mexico.

Slipping her age-defying figure into a tiny patterned bikini, the serial cougar was seen splashing around in the sea with a muscular tattooed companion.

Bikini gal: Demi Moore, 50, displayed her age-defying body in a revealing bikini during a recent vacation in Tulum, Mexico

The 50-year-old Striptease star looked happy and relaxed as she emerged from the water, showing off her toned and tanned physique in her revealing two-piece.

Chatting and giggling with her new pal, the actress appeared to be having a ball.

Demi's long-haired pal meanwhile displayed his rippling torso in a pair a black swimming trunks.

Another toyboy: The serial cougar was seen splashing around in the sea with a muscular tattooed companion.

Flirty: Chatting and giggling with her new pal, the actress appeared to be having a ball

After reaching dry land, the pair toweled off alongside one another, still deep in their conversation.

During her vacation Demi was said to be attending a bikini bootcamp where she engaged in yoga, Zumba dancing, circuit training and mediation.

But the Ghost star, who recently divorced her toyboy husband Ashton Kutcher, was temporarily distracted by her hunky shirtless pal.

Give me wings: During the day Demi was seen sipping on several Red Bull energy drinks.

Serial cougar: According to reports, the actress was getting distracted by several younger men during her trip

After the pair's swim, the duo went for a stroll on the beach with other guests at the resort.

Demi had changed bikinis, this time slipping into an equally revealing black suit featuring a patterned triangle top.

Later in the day, she was again seen in deep conversation with yet another guest - the brunette star sipping on a Red Bull energy drink as the pair chatted away.

Drying off: After reaching dry land, Demi and her friend toweled off alongside one another, still deep in conversation

Demi spent the last few weeks at the spa resort Amansala Eco-Chic, where she had also been indulging in meditation and massages.

And it looks like the stay in tropical paradise did Demi the world of good judging by her appearance.

As well as meditation sessions, Demi treated herself to daily massages and treatments at the resort, where rooms at the ‘rustic luxury hotel’ can cost up 295 dollars a night.

Quick change: Demi later changed into a different bikini to go for a stroll with another guest.

Baring all: Demi revealed her slightly saggy bottom as she pottered around on the beach 

Demi headed to Mexico on December 23 – just two days after third husband Kutcher filed for divorce following their separation in 2011.

News of the looming divorce capped a difficult year for Demi, who has been battling health issues and checked into rehab last January.

According to The National Enquirer, Demi travelled to Mexico before Christmas at the behest of daughters Rumer, 24, Scout, 21 and Tallulah, 18, who had grown increasingly concerned by their mother since her split with Ashton.

Deep and meaningful: Later in the day, she was once again seen in deep conversation with yet another guest - the brunette star sipping on more energy drinks as the pair chatted away.

The girls told her that if she didn't straighten herself out, they’d have nothing more to do with her,' a family friend told the Enquirer.

New love? According to reports, Demi is currently dating Lindsay Lohan's ex-Harry Morton

The strains between Demi and her brood had become apparent last year when it was revealed her children had cut contact with her.

Rumer was reportedly furious with her mother after she was romantically linked to toyboy Vito Schnabel – at the tender of 26 almost half Demi’s age.

However The Enquirer quoted fellow guests as saying that Demi’s antics during her Mexican mini-break would have done little to assure her children that she is getting her life back on track.

'Demi’s behaviour was outrageous,' a guest told the Enquirer. 

'She skipped out on most of the spa activities and seemed to flirt with every young male in sight, including a 17-year-old.'

Since returning from her sunshine break, Demi has reportedly already fixed her sights on yet another toyboy.

It's being reported that restaurant owner Morton has taken Demi on several dates in recent weeks, including a romantic tete-a-tete at the South Beverly Grill in Beverly Hills.

Morton, who founded Pink Taco restaurant chain, dated Lindsay Lohan in 2006 and was linked to Jennifer Aniston in 2010.

Source told E! Online, who first reported the news, 'They are just getting to know one another ... [Moore is] in a really good place at the moment and is hopeful about the future.

Culled from The Daily Mail UK.

xoxo

Simply Cheska...