Fred Siriex treated fans to a rare snap of him with his son (Picture: Instagram/Rex)

First Dates star Fred Sirieix has treated fans to a rare snap of himself with his son Lucien, enjoying a cute day out together in London.

The TV star, 48, usually likes to keep his personal life away from the public eye, but it seems the snap of himself and Lucien, 10, all cuddled up together was too cute for Fred not to share.