Victoria’s Secret model Miranda Kerr is head over heels about being a new mother and can’t believe how fast son Flynn is growing. Being a new mother, however, didn’t stop her from returning to work.

Kerr, who is married to actor Orlando Bloom, gave birth to Flynn in January and is shocked by how fast he is growing.

“There’s no words that could ever describe the happiness and the joy that you feel when you see your son smile in the morning, I just feel so lucky,” she told OK! magazine: “I mean, it’s the best thing I’ve ever done.”

“He just got his first two teeth. He’s laughing and smiling,” she says.

Despite becoming a mother less than six months ago, Miranda has already regained her perfect figure and credits yoga during and after her pregnancy with getting her back in shape so quickly.

“Well for me, I practiced yoga throughout my whole pregnancy and I continue to practice it now,” she says.

“For me, it really works. I love it. I do a combination of Kundalina and Hatha yoga and I’m also training as well.”

Kerr has been relishing her baby in more ways than one. She posed nude when she was pregnant and sporting a huge baby bump.

Miranda posed for the iconic photo in Paris in November for photographer Patrick Demarchelier.

The classic black-and-white photo ran in W magazine, making Kerr one of a slew of celebrities to pose pregnant nude for a magazine.

In April, the 28-year-old was back at work in a black bikini in Malibu for Victoria’s Secret.

She looked like she had never left the runway, much less given birth.

Check out Miranda’s photos. Click to supersize.

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