'You've changed my life for the better': Louis Tomlinson's ex Briana Jungwirth pens a touching tribute to baby Freddie as they share cuddles in precious new snap

Briana Jungwirth warmed hearts with the latest picture of Freddie Reign Tomlinson on Tuesday.

The newly-brunette beauty posted a precious picture of Louis Tomlinson's three-month-old son on Instagram as the mother-son duo shared cuddles before bedtime.

Alongside the latest family picture, the 24-year-old stylist penned a tribute to her newborn, thanking him for '[changing her] life for the better.'

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Precious: Briana Jungwirth shared a precious snap with baby Freddie Reign Tomlinson on Tuesday, as they shared sweet cuddles

Precious: Briana Jungwirth shared a precious snap with baby Freddie Reign Tomlinson on Tuesday, as they shared sweet cuddles

The mum-of-one told her 407k followers: 'You've changed my life for the better. I love you with my whole heart.' 

Freddie Reign, who is the son of One Direction heartthrob Louis, also 24, is pictured snuggling into mum Briana's left shoulder.

Louis' ex rests a delicate hand on the back on his head as they recline together on a chaise longue-style chair.

LA-based Briana is recognisable from her nose piercing, though 1D fans will note Briana's new, chestnut hair hue, that she debuted on the social media site last week.

Paying tribute: Beside the shot, Briana wrote: 'You've changed my life for the better. I love you with my whole heart' while a second shot captured his little feet in view

Paying tribute: Beside the shot, Briana wrote: 'You've changed my life for the better. I love you with my whole heart' while a second shot captured his little feet in view

A second picture shows Freddie laying out on Briana's flat stomach, while a third, more artistic, black and white shot captures just Freddie's feet.

The snapshots come just one day after Louis's grandfather Len described his determination be a 'great dad.'

Speaking at his home in Doncaster on Tuesday, Len told ITV Calendar that seeing Louis as a father was a rewarding experience.

He said: 'He's learning very quickly to be a dad. I mean Louis wants to be a great dad and he is a great dad and will be a better dad. But it's all a new learning curve for him,' Len explained.

'I see him changing Freddie and feeding Freddie, like we all do and all have done. But it's a new phenomenon for Louis and he's learning very quickly on his feet ' 

Baby steps: Briana also shared a cute artistic shot of three-month-old Freddie's little feet in black and white

Baby steps: Briana also shared a cute artistic shot of three-month-old Freddie's little feet in black and white

'I mean the baby's very young, he's only two months old. So there's no real baby stories, apart from agaga agoogoo'. 

News that Louis was to become a first-time dad broke in July 2015, following his brief fling with Briana in Los Angeles.

The singer has largely spent the last six months in the US as he tries to share visiting time with the mother of his child.

One Direction - featuring bandmates Harry Styles, Niall Horan and Liam Payne, are currently on an extended hiatus from music.  

Father-son: The shots come just one day after Louis Tomlinson's grandfather Len described the One Direction's determination to be a 'great father'

Father-son: The shots come just one day after Louis Tomlinson's grandfather Len described the One Direction's determination to be a 'great father'

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