Sienna Miller knows best mate Keira will be a 'perfect' mum

Mum-to-be Keira Knightley has her own personal cheerleader in best friend Sienna Miller and isn’t that exactly what best pals are for?!

Commenting on her friend’s pregnancy, an overjoyed Sienna said: “We’ve spoken a lot and I know she will be amazing.”

29-year-old Keira confirmed rumours at the beginning of the month that her and husband James Righton were expecting after the rumour mill had gone into overdrive!

The Bend it like Beckham star was seen declining alcohol at the Moet British Independent Film Awards, something which caused a huge amount of speculation, and led the actress to share her exciting news with the public.

Best friend, Sienna, who has a daughter named Marlowe with her fiancé, is confident that Keira will take to motherhood immediately, saying: “She doesn’t need any advice. She will be perfect.”

Speaking about her own experience of motherhood, Sienna said: “I was overwhelmed by how normal it felt. It was like ‘There you are- that’s what I have been missing.’”

Even though Sienna is certain Keira doesn’t need an advice, it’s nice to know that her best friend is there with her own stories and experiences if she does need a helping hand!