Another added: “They look like Monica and Richard (friends),” adding two laughing face emojis.
After seeing the comments, the This Morning star went on to post another celebratory snap featuring the same caption – but with one slight difference.
Instead of the ITV presenter’s parents featuring in the picture, actors Tom Selleck and Courteney Cox were surrounded by a red heart.
The pair starred together in the hit series Friends, and were involved in a romantic plot line before parting ways over their difference of opinion in wanting children.