Blake Lively has to change outfits throughout the day because her boobs are constantly expanding

We know all celebs love a good outfit change but now Blake Lively has a legit reason for modelling a series of stunning ensembles every day.

That’s right, since giving birth to her and Ryan Reynolds’ baby daughter James four months ago our* Gossip Girl* fave has to change clothes because her boobs expand so quickly.

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Cos, y’know, being an international megastar doesn’t leave much time for milk pumping.

The 27 year old told People magazine: “I walked out onstage for one appearance in an outfit that had fit perfectly when I tried it on many hours earlier, but by the time it got on me, I thought, "Oh no! This isn't going to cover them up at all!" I was very worried about a wardrobe malfunction.”

While promoting her new film Age Of Adaline in New York, Blake was spotted wearing no less than FOURTEEN different outfits over three days.

We’re not even sure we own fourteen work-worthy outfits. We might be all right if the office introduces ‘wear a onesie to work’ day…

Explaining where she’s doing all these frantic changes, the star said: “In the green room, in the car, in a ladies' room. The hair seems to be happening in the car a lot.”

Don’t worry Blake, we’ve all been there with the awkward back-seat-quick-change. Except ours was in a Ford Fiesta not, like, a limo.