The couple, who finished Love Island in fourth place, joined tons of celebrities for the CharityStars #AGOODSUMMERPARTY bash at The Soho Sanctum Hotel on Tuesday evening (21 July).
Former Miss Great Britain Cally flaunted her cleavage in a plunging red satin dress, which she teamed with nude heels.
Co-ordinating with his girl, Luis kept it simple in red and black, and was all smiles as he protectively had his hand round Cally's waist while posing for pictures.
The party didn't stop there for the couple, as they later headed down to DSTRKT nightclub to celebrate Luis' birthday. And who were the guests of honour? Their fellow islanders, of course!
Luis and Cally, dubbed Calu, were one of the four couples to make it to the Love Island final after viewers watched love blossom between the pair.
Love Island saw Max Morley and Jess Hayes crowned the winners. Hannah Elizabeth and Jon Clark, who got engaged on the show, came second place. Lauren Richardson and Josh Ritchie came third.
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