Robin Thicke's model wife, 31, shows off incredible bikini body after giving birth to three kids as they vacation in Saint-Tropez

Robin Thicke's second wife April Love Geary showed off her incredible bikini body while enjoying a family summer vacation at the commune Saint-Tropez in the South of France on Wednesday.

At 49, the Masked Singer panelist is 18 years older than the Photo/Genics Media-repped model, but they've been inseparable ever since they met at a party when she was just 19.

Geary wore a black and white two-piece as she strutted through the surf on a Tropezian beach.

The 5-foot-11-inch stunner and her family love the French Riviera so much, they also vacationed there during the Cannes Film Festival two months earlier.

Geary wore gold hoop earrings and dark sunglasses over her flawless face.

Meanwhile, Thicke went shirtless in black swim trunks while sporting dark shades.

At one point, the May-December duo drove a white pedal boat with a large slide attached to the front for more fun in the sun.

Joining Thicke and Geary in the water were their three children – eight-year-old daughter Mia, seven-year-old daughter Lola and five-year-old son Luca.

The Canadian crooner and the Orange County native were engaged for six years before finally tying the knot at Las Ventanas al Paraíso, A Rosewood Resort in Cabo San Lucas, Mexico 14 months ago.

Thicke and Geary went on to honeymoon at a private island resort called The Brando in Tahiti.

The five-time Grammy nominee, who enlists a nanny, shared snaps via Instagram story of their two daughters enjoying a boat cruise on Thursday.

Later, Thicke and the pretty socialite attended a gala aboard a yacht where he and Shaggy performed their new single, Looking Lovely.

The Daily Mail has reached out to the married couple's reps for comment, but did not immediately hear back.

Thicke and Geary began dating in 2014 – the same year he legally separated from his high school sweetheart Paula Patton following a decade-long marriage.

The Blurred Lines hitmaker and the 50-year-old Actor Award nominee, whose divorce was finalized in 2015, amicably co-parent their 16-year-old son Julian.

But the ex-couple didn't finalize their custody arrangement until 2017 due to her making allegations against him involving 'child abuse, domestic violence, infidelity and drug/alcohol addiction.'

'My relationship with Paula didn't work, but our son is thriving and doing great,' Thicke told The Breakfast Club Power 105.1 FM in March.

'She's an incredible mom. I've tried to be an incredible dad. And so now I don't want to do that again, especially with three kids. You learn that there's some things I could have done better and some things were just meant to be. I do love my life and I love that I have three extra kids.'

Last week, Fox hired the Hotel singer to replace Randy Jackson as bandleader on the sixth season of the Jane Krakowski-hosted musical game show Celebrity Name That Tune, which premieres September 21.

And in May, Deadline reported that season 15 of The Masked Singer will be filmed in New Jersey (because of tax incentives) rather than California due to the newly hired Fremantle-owned company, Eureka Productions.

In January, Parade estimated that Thicke earned $100,000 per episode to serve panelist duties on the Fox celebrity singing competition, but prior reports had him earning up to $2.5 million per season paychecks.

The Close to You singer will also soon launch a High-ABV canned espresso martini brand called Mimá.

Thicke, who pulls 7.1 million monthly listeners on Spotify, hasn't released a full-blown record since his eighth studio album On Earth, and in Heaven in 2021.

But the Bitter Sweet singer certainly had a nepotistic leg up in the industry thanks to his late father, Growing Pains alum Alan Thicke.