Hilary Duff shares sweet snaps of newborn daughter Townes bonding with her big sister Banks... five days after welcoming fourth child at home

Hilary Duff shared a sweet snap of herself bonding with her five-day-old newborn daughter Townes Meadow Bair on Tuesday.

The 36-year-old mother-of-four - who boasts 45.4M social media followers - captioned her cuddly Instastory: 'Townsie gahhh!'

Little Townes also spent some time resting in the lap of her five-year-old big sister Banks Violet Bair with a big smile plastered on her face.

Hilary delivered her fourth child inside a water tank at her $3.85M five-bedroom Beverly Hills home with help from professional midwives at Birthing Rhythm.

'Now we know why she made us wait so long. She was perfecting those cheeks!' Duff wrote in her birth announcement on Tuesday.

Hilary Duff shared a sweet snap of herself bonding with her five-day-old newborn daughter Townes Meadow Bair on Tuesday

The 36-year-old mother-of-four - who boasts 45.4M social media followers - captioned her cuddly Instastory: 'Townsie gahhh!'

'I have been dreaming of holding you in my arms for months and the past five days of getting to know you, stare at you and smell you has been pure moments of magic. We all love you like you've been here all along beauty.'

The My Little Sweet Boy author's second husband Matthew Koma called her his 'literal warrior goddess of a wife' in his own birth announcement.

The 36-year-old Winnetka Bowling League frontman wisecracked: 'She's happy, healthy, chunky and looks like nobody in our genetic pool so if anyone knows of @hilaryduff's whereabouts roughly nine months ago to date, please reach out for a cash reward.'

Hilary and Matthew are also proud parents of three-year-old daughter Mae James Bair, and she mothered 12-year-old son Luca Cruz Comrie during her six-year marriage to Mike Comrie, which ended in 2016.

Duff was still technically married to the 43-year-old retired NHL player when she first met Koma (born Bair) while they collaborated on her 2015 album, Breathe In. Breathe Out.

The Texan-born blonde and the Brooklyn-born musician might have split for six months in 2017, but they happily celebrated their fourth wedding anniversary on December 21.

On May 31, Matthew's band - that gets 392K monthly listeners on Spotify - will drop their debut studio album Sha La La, which features their singles America in Your 20s and Handsome.

The musical trio - including Kris Mazzarisi on drums and Sam Beresford on keys - then kick off their 30-date The Tourgasm on June 25 at Madame Lou's in Seattle, WA.

Little Townes also spent some time resting in the lap of her five-year-old big sister Banks Violet Bair with a big smile plastered on her face

Hilary delivered her fourth child inside a water tank at her $3.85M five-bedroom Beverly Hills home with help from professional midwives at Birthing Rhythm

Duff's second husband Matthew Koma (R) called her his 'literal warrior goddess of a wife' and wrote of their baby: 'She's happy, healthy, chunky!'

The My Little Sweet Boy author and the 36-year-old Winnetka Bowling League frontman are also parents of three-year-old daughter Mae James Bair (M, pictured February 14), and she mothered 12-year-old son Luca Cruz Comrie (L) during her six-year marriage to Mike Comrie

On May 31, Matthew's band - that gets 392K monthly listeners on Spotify - will drop their debut studio album Sha La La, which features their singles America in Your 20s and Handsome

The musical trio - including Kris Mazzarisi on drums and Sam Beresford on keys - then kick off their 30-date The Tourgasm on June 25 at Madame Lou's in Seattle, WA

Winnetka Bowling League will be on the road on and off through October 4 and even booked a concert in New Hampshire on Hilary's 37th birthday (pictured April 4)

Winnetka Bowling League will be on the road on and off through October 4 and even booked a concert in New Hampshire on Hilary's 37th birthday.

Aside from her expanding family, Duff works as the chief brand director for home fragrance company Below 60° on top of her paid partnership posts for brands like OLLY supplements, SkinCeuticals skincare, and Target.

Hulu canceled the former Disney Channel star's dismally-reviewed sitcom How I Met Your Father on September 1 after three seasons.

This, after Disney+ canceled Hilary's Lizzie McGuire reboot in 2020 over creative differences after the cast filmed just two episodes.