The 29-year-old footballer appeared relaxed and happy with his close friends - and it looked like one of the children had been demonstrating their face-painting skills, as all six wore decorative designs, including cat whiskers on Cristiano's face.
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The picture is sure to delight Cristiano's fans, who rarely get a glimpse into his personal life. Despite their four-year relationship, Cristiano and Irina are rarely pictured together.
The two held hands back in October when they made a surprise appearance together as they walked the red carpet for the Professional Football League gala, where Irina looked to be enjoying her beau's special night.
Cristiano also gave a rare insight into his home life back in November, as he shared a photo of himself with his mini-me son. The Portuguese football star posted the snap on Instagram, gaining more than 934,000 likes within the first few hours.