She recently enjoyed a holiday in Ibiza with her lookalike sister Martha.
Yet Emily Atack seemed to be pining for some more fun in the sun as she shared a stunning throwback snap on Monday.
The actress, 32, looked sensational as she posed for a glamorous selfie with her younger sibling, 30.
Emily highlighted her tanned and toned figure in a plunging polka dot bikini top that she paired with a cream sarong.
The Inbetweeners star went makeup-free to allow her natural beauty to shine through, and donned a pair of oversized shades.
Martha looked equally as stunning as she modelled a black cut out swimsuit for the snap.
Emily captioned the shot: ‘Ibiza spam still taking a hold.’
Emily has been keeping her Instagram followers up to date with her holiday over the past few days.
The pair recently enjoyed a luxurious boat ride on the Spanish party island, with the sisters posing for a fun snap together.
Emily captioned the photograph: ‘Sun, Sea and cerveza [beer] diet, works for us’.
The boat was driven by the sisters’ pal Jack Harries, who even brought his pet pooch along for the ride.
The trio enjoyed the picturesque views before later exploring a near by port and enjoying a sumptuous seafood lunch.
Emily wore a flowing white cover up and carried her belongings in a straw beach bag as they explored dry land.