Mandy Moore feels "so complete" after becoming a mother for the second time.

The 38-year-old actress - who has been married to musician Taylor Goldsmith since 2018 and already has 23-month-old Gus with him - gave birth to son Oscar in October and explained that she is trying to "soak in" the early days of motherhood once again.

She said: "This time is so fleeting. I’m really trying to soak it in all [of] his little noises and his smell. … This newborn phase is so specific and so special and it goes by so fast that I’m just trying to hold onto it as long as I can. We feel so complete now!"

The 'This Is Us' star - who was previously married to rock star Ryan Adams from 2009 until 2016 - went on to explain that while her eldest is definitely more like his father, she is unable to tell just yet which parent the newborn will eventually take after more.

She told Us Weekly: "Gus is a carbon copy of my husband and always has been. mean, everybody says that — so much so that I’m like, ‘I swear I was there. I was a part of this.’ But Ozzie’s yet to be determined. I’m not sure who he’s gonna look like. It’s still so early. We look back at pictures of Gus when he was this age and we’re like, ‘Whoa. He was completely different.’ He doesn’t look anything who he’s grown up to be thus far. Ozzie is a little stockier than Gus is and was heavier at birth. He’s a little sturdier, a little thicker.

"And he’s got those delicious little rolls, like, wrist rolls and rolls on his back and stuff like that. So I’m very excited. I didn’t get to experience that the first go around."

Upon giving birth to the little one in October, the 'Candy' hitmaker took to social media to explain that the arrival was "a little late" but her family were "so grateful" to have welcomed a new member.

Alongside a black-and-white image of herself cradling the little one in bed, Mandy wrote on Instagram: "Ozzie is here! Oscar Bennett Goldsmith arrived a little late but with much aplomb (and an easier/speedier delivery than his big brother, much to the delight of his parents). Every adage is true: our hearts have doubled in size and the immediacy of the love is astounding. He is beyond words and we are so grateful for our family of four!"(sic)