Jenson Button's in bikini heaven as girlfriend Jessica Michibata

This kind of post-race relaxation certainly beats a foil blanket and a Mars bar at the finishing line.

After recording a personal best in the London Triathlon earlier this month, Formula One star Jenson Button treated his model girlfriend Jessica Michibata to some quality time on board a yacht in Saint-Tropez.

The couple appeared closer than ever during their romantic pit stop before Button gets back in the driving seat for the European Grand Prix in Valencia a week on Sunday.

Loved up: Racing driver Jenson Button relaxed on a yacht in St Tropez with girlfriend Jessica Michibata yesterday

Cooling down: The model showed off her stunning figure in a minuscule blue bikini

After frolicking on jet skis in the Mediterranean, Brawn GP driver Button, 29, was given the tough job of rinsing the sea water off his 24-year-old girlfriend.

He then wrapped her up in a black towel and tenderly kissed her cheek before fetching himself a beer.

Earlier they appeared to be enjoying the sunshine as they strutted along the exclusive Club 55 together hand-in-hand.

Sweet nothings: Jessica gives Jenson a hug and appears to whisper something in his ear as they whiled the day away

Guests on the yacht were even treated to a jazz band hired from the exclusive Club 55 restaurant yesterday.

It is unclear who owns the vessel, but Monaco- based Button would have no problems chipping in for the rental after reportedly offering to sell his Bugatti Veyron sports car for £900,000.

Over the weekend Button was pictured with a swarm of women surrounding him, showing he is still as popular as ever with the ladies.

Pit stop: Earlier the couple enjoyed a romantic stroll along the beach

The pair lapped up the sunshine as they spent some quality time together

He has a long-term reputation for being a ladies man, however his blossoming relationship with girlfriend Jessica has seemingly put an end to his womanising ways.

An onlooker said: 'Jenson was surrounded by female attention but he didn't really react.

'He looked happy and content just chatting to everyone.'

Button has reportedly put his Bugatti Veyron sports car up for sale for £900,000