The Only Way Is Essex star, 20, ditched the tiny bikinis she was wearing at the beginning of the trip and opted for a fringed swimsuit that hid any signs of bloating.
Amy looked stunning in the cowboy-inspired costume though, that was cut at the sides and boasted a plunging neckline to show off her surgically enhanced cleavage.
Cowboy-inspired: Amy Childs sported a fringed on-piece swimming costume that plunged down her chest and was cut out at the sides but hid any signs of a bloated stomach
Her best friend Samantha Faiers, 20, was also strolling around in a one-piece today and was spotted walking hand in hand with her boyfriend Joey Essex, 22.
Sam wore a glamorous monochrome costume that resembled a mini dress that also plunged down her chest.
But there was still one cast member of the reality TV show who was game for a tiny two-piece and that was Chloe Sims, 29.
But the raven haired reality TV star appeared to be having some trouble staying upright in her wedged heels.
Disguise: Amy looked stunning in the cowboy-inspired costume, but yesterday was showing some signs of bloating in a leopard print monokini
Young love: Samantha Faiers was also strolling around in a one-piece today and was spotted walking hand in hand with her boyfriend Joey Essex
The super slim star showed off her skinny pins in a coral coloured bikini that was accessorised with a matching scarf – despite soaring temperatures in Spain.
While Maria Fowler, 24, opted for something in-between with a rainbow-coloured monokini as she sipped on cocktails.
Pretty in purple: Lydia Bright arrived at Spray party at Ocean Club in Puerto Banus, Spain in a purple ensemble and a cowboy hat
Ocean club: The party kicked off in the afternoon in Puerto Banus, where the cast of The Only Way Is Essex headed to
Later in the afternoon Lydia Bright, 20, arrived at Spray party at Ocean Club in Puerto Banus in a purple ensemble and a cowboy hat to join her friends.
On Saturday the clan were boogying down at the Buddha Beach Bar, but on Sunday they decided that the Ocean Club was more their scene.
Tiny two piece: Chloe Sims showed off her skinny pins in a coral coloured bikini that was accessorised with a matching scarf
Time for a drink! While Maria Fowler (right) opted for something in-between with a rainbow-coloured monokini as she sipped on cocktails
But after days of drinking on end, reality seems to have kicked in and on Saturday Miss Childs appeared to be fighting a bloated stomach.
But no-one could blame the girls for celebrating after their hit ITV show won a Bafta Television Award this month.
Pristine white: Yesterday Chloe Sims showed off her enviable figure in a tiny white bikini, which she accessorised with flip flops, red lipstick and sunglasses
Night glamour: Last night the girls swapped their bikinis for evening dresses to have a night on the town in Marbella, Chloe wore white, while Amy opted for an LBD and Sam chose nude
And Marbella seems to be the place to be for not just the cast of TOWIE, but also Katie Price and Kerry Katona.
The fellow reality TV personalities have been lapping up the sunshine alongside their favourite TOWIE stars for a bit of rest and relaxation.
Love in the sun: Joey Essex and Sam Faiers decided to try their hand at some water sports yesterday and couldn't keep their hands off each other
Water sports: Samantha Faiers waves to the camera as she and Joey Essex join a group of friends on the inflated ride