The fitness enthusiasts positively beam in the shoot as they each flash their pearly whites, offset by their enviably bronzed skin, for the camera.
At first glance, it appears Alessandra – who is married to husband Jamie Mazur, with whom she shares two children – is topless for the racy shoot, though on further inspection the catwalk queen appears to be wearing a skimpy one-shoulder bikini top, concealed by Christian’s strategically placed arm.
The duo are believed to have snapped the image in October last year, when the Portuguese sports star shared a video on social media of the two behind-the-scenes on a ‘top secret project’.
‘Hi guys, we’ve finished photo-shooting, it was amazing filming with Alessandra, she is fantastic, she does a fantastic job, hristiano says in the clip.
‘We are not going to say what we did because it’s a secret, we hope you are going to like it.’
His sweet comments are then met with an equally gushing set of words from Alessandra, as she replies: ‘I had a great time with you. ‘You’re an amazing person, a super-nice guy and I hope you guys have fun and it’s a top secret project so you’re not going to find out.’