Make-up free Katharine McPhee, 37, pumps breast milk and dotes on her baby son Rennie

‘We’re having fun!’ Make-up free Katharine McPhee, 37, shares comical snap of herself pumping breast milk in lace bra before doting on son Rennie

She welcomed her first child towards the end of February with her husband David Foster, 71. 

And make-up free Katharine McPhee, 37, looked radiant on Thursday as she pumped breast milk and nursed her one-month-old son Rennie. 

The actress looked stunning in a blue robe as she looked after her tiny tot at her LA home and shared adorable snaps of their day together on Instagram. 

'We're having fun!' Make-up free Katharine McPhee, 37, shared a comical snap of herself pumping breast milk in a lace bra on Instagram on Thursday before doting on son Rennie

‘We’re having fun!’ Make-up free Katharine McPhee, 37, shared a comical snap of herself pumping breast milk in a lace bra on Instagram on Thursday before doting on son Rennie 

Her chocolate locks tumbled down in a natural wave and she was seen wearing a chic lace nursing bra while topping up her baby’s milk supply. 

‘@Elvie is the fricking bomb!!’ she said, praising her go-to breast pump. ‘Never thought I’d be so passionate about a pump!’

She also playfully posed with her black Caraa diaper bag before lounging in bed with her son Rennie resting peacefully on her chest. He sported an adorable elephant babygro.

Her partner David is the parent to five daughters. He shares Jordan, 34, Erin, 38, and Sara, 40, with his ex-wife Rebecca Dyer.

Motherhood: The actress looked stunning in a blue robe as she looked after her tiny tot at her LA home and shared adorable snaps of their day together on Instagram

Motherhood: The actress looked stunning in a blue robe as she looked after her tiny tot at her LA home and shared adorable snaps of their day together on Instagram

The prolific music producer is also a dad to Allison, 50 – who was born when he was 20 and placed for adoption only from them to reconnect thirty years later – and Amy Skylark, 47, from his first marriage to B.J. Cook. 

David and singer and actress Katharine married in 2019 and welcomed their son on February 24. 

Katharine insisted to People in March that she didn’t feel any pressure to ‘bounce back’ or ‘fit into her jeans’ following her pregnancy. 

‘I’ve just been so grateful and happy that I’ve had a healthy baby and I’ve felt really good, emotionally and physically,’ she told the outlet.

Mom duties: Her chocolate locks tumbled down in a natural wave and she was seen wearing a chic lace nursing bra while topping up her baby's milk supply

Shout out: '@Elvie is the fricking bomb!!' she said, praising her go-to breast pump. 'Never thought I'd be so passionate about a pump!'

Mom duties: Her chocolate locks tumbled down in a natural wave and she was seen wearing a chic lace nursing bra while topping up her baby’s milk supply

'What I love about it...'She also playfully posed with her black Caraa diaper bag before lounging in bed with her son Rennie resting peacefully on her chest

‘What I love about it…’She also playfully posed with her black Caraa diaper bag before lounging in bed with her son Rennie resting peacefully on her chest

‘I’m so happy that I don’t have this crazy pressure yet to fit into whatever jeans I have in my closet. I don’t even think about them right now!’ 

The new mom added that it’s ‘nice to have a break’ from working out, too. 

She mused: ‘In my everyday life, I would have an event coming up or need to work out and it’s just really nice to have a break and be happy where I am.’  

Family: Her partner David is the parent to five daughters, Erin, 38, Amy Skylark, 47 and Jordan, 34, (pictured) in addition to Sara, 40 and Allison, 50

Family: Her partner David is the parent to five daughters, Erin, 38, Amy Skylark, 47 and Jordan, 34, (pictured) in addition to Sara, 40 and Allison, 50

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