Cara Delevingne and Selena Gomez shower together in skimpy swimwear as they party with hotties

The pair cuddled up close under the boat's shower - no doubt keen to wash of the sea water after all the water sports they're enjoying

We know Cara Delevingne loves to get really close to her best pals, and her new BFF Selena Gomez was no exception as the pair took a shower together onboard their private yacht.

Supermodel Cara is busy celebrating Selena's 22nd birthday in St Tropez, France, and the pair have done it all - partying to all hours, cuddling hot men, jetskiing and parasailing.

Best. Holiday. Ever.

Now, clearly having bonded over their love of all these incredible things, the pair have taken a shower together in the skimpiest, most see-through swimsuits possible.

XclusivePix

The girls had a nice long shower after their swim

Cara - who is seen dipping her head forward as Selena holds on to her - shows off her toned body in a yellow patterned bikini.

Meanwhile Selena covers up in a white swimsuit with crossed back - only, it looks totally see-through to us, and by the looks of it, that shower isn't going to help one bit.

Both stars have their eyes closed as they enjoy the warm water, and while most of us mere mortals would feel at our worst in this situation, they both just look like total goddesses.

XclusivePix

Cara Delevingne and Selena Gomez rinsed off the salt water together

 Shortly after their steamy wash, Selena was snapped cuddling up to a mystery man - reportedly Italian businessman Tommy Chiabra - as he rubbed her shoulders in a huge yellow towel.

Justin Bieber, you may want to look away now.

Cara also got a rub down, after the whole group were done jumping in like little kids off the boat.

(We'd do the same).

Vantagenews.co.uk

Tommy Chiabra, Selena Gomez and Cara Delevingne diving from Ecstasea's yacht in Saint-Tropez

The pair have been making the most of their seaside home over the last week, and were snapped enjoying all sorts of fast-paced watersports just a day ago.

This time, both wearing near matching black bikini tops, with Selena opting for high-waisted white bottoms, they donned life jackets and got stuck in with, well, everything.

In one shot, the pair are joined by friends as they sail over the sea, seemingly having the time of their lives - and yes, Selena is hanging on to her man here too.

The pair seemed comfortable together as they laughed at getting sprayed by the water.

Vantagenews.co.uk

Tommy Chiabra, Selena Gomez and Cara Delevingne diving from Ecstasea's yacht in Saint-Tropez

 Meanwhile Cara took charge of her own ski with another man clinging on behind her, before taking some time out on the boat and enjoying the hot weather, and we don't blame her, if only our friends held birthday parties like this.

Shortly after they hit the town again looking all glamorous and less covered in sea water.

Selena uploaded a lovely, joy-filled Instagram pic of the girls titled: “Thank you SO much for my birthday wishes -this has been the BEST birthday yet! THANK YOU!!!!”.

SLF/SIPA/REX

Selena Gomez and Cara Delevingne on a jet ski

We think she was having a good time.

The pair also took a helicopter ride earlier in the week. We’re starting to get a bit jealous now, because our last birthday involved face palming the bed at 11pm after too much cake and wine.

Someone remind Selena that 21 is the big one please - before we explode with envy.