Louis Tomlinson kissed his son in a family photograph shared by his mother.

Louis Tomlinson (c) Facebook

Louis Tomlinson (c) Facebook

The 24-year-old star and former lover Briana Jungwirth welcomed Freddie Reign into the world in January and the One Direction hunk is currently living in Los Angeles to be close to his little boy and clearly dotes on the tot.

His mother Johannah Poulston shared a touching picture of her son doting on the little tot as he holds him up for a kiss, and wrote beside the sweet black and white image: "Thinking about my son and his son."

Johannah lives in the North West of England and though she has visited them in the States, she hasn't moved there permanently and is missing the "little poppet" and her superstar son very much.

She told fans who commented on the Facebook picture: "Freddie is 2 months old now. He is such a little poppet. Miss them when I am 5000 miles away."

Louis - who is now dating actress Danielle Campbell - recently established a temporary custody agreement with Briana, shortly before they were due to go to court.

It had been alleged that Briana has "gotten greedy" and has been demanding more money, preventing the 'Drag Me Down' singer from visiting Freddie and using the tot to land a better deal.

However, the pair came to an agreement which will allow Louis to see Freddie for several hours at a time but with no overnight visits yet.

Their lawyers are now working together to secure a permanent arrangement.