Sienna Miller was "overwhelmed" by how "normal" things felt when she had a child.

She said: "I was overwhelmed by how normal it felt. It was like, 'There you are -- that's what I have been missing.' Like we're both in on something only we know. An amazing sense of being complicit with a little being."

Sienna has been in a relationship with Tom, 29, for three years and the 32-year-old beauty loves the fact there is no "drama" in their lives.

She told the new issue of Vogue magazine: "Tom is a grounded, intelligent, kind, and intact person. That's amazing to be around. That's the father of my child. There's no drama."

Though Sienna insists her life with Tom and Marlowe is very "normal", she is adamant their day-to-day domesticity isn't boring.

She said: "It's very normal, very kind of still.

"We go to the country. I like to cook and go to Whole Foods. I have a [Newfoundland[ dog - not a dog but a bear - who when I walk pulls me over flat on my face into the mud.

"My baby pukes on me. It's life. It's very much a normal life."

"I really don't want to sound boring. It's completely crazy and illicit behind closed doors."

And the 'Factory Girl' star says she and Tom inspire one another to do better in their careers.

She said: "As much as he helps my work, I help him. We're both completely supportive of that need for creative output. At the moment, we're just both trying to blast it, to get to a really great p