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Colin's girl Alicja reveals secret of her killer curves

Colin Farrell's girlfriend has revealed the secret to her killer curves -- so soon after giving birth.

And it's all down to the Polish sexpot embracing the natural aspects of motherhood after giving birth to the couple's first baby Henry last October.

Alicja Bachleda (26) sent temperatures soaring in chilly Dublin after the red-carpet was rolled out at the Savoy cinema for the Ondin' premiere.

And the Herve Leger-clad actress told the Herald the reason for her enviable size 8 figure.

"I didn't do anything! I'm breastfeeding and that's all. It's going great but is hard work, as I'm sure every mum knows. He's good though, he's a fantastic little boy," she explained. The couple left their young baby at home in LA as they lent some Hollywood glamour to last night's proceedings, which kickstarted the annual Jameson Film Festival.

And Colin (33) who looked dapper in a grey designer suit, revealed how he hasn't ruled out marriage to his gorgeous girlfriend.

"There are very few things that I would say 'no' to, to be honest," he explained.

He also said that the Neil Jordan-directed movie, which led to him meeting co-star Alicja, will be a nice keepsake for their son further down the line.

"I never saw that coming (their romance) but it's lovely at the end of the day to think that in years to come, the little fella can look at this and think this is the film where his mum and dad met. He might hate the movie though. He might think it's sh**e!" he continued.

"It was very easy movie to make. We had three months down in Castletownbere and there's few places more beautiful in the world than the Beara Peninsula. It turned into a more profound experience than I ever thought it would be."