The Transformers star admits she was nervous about posing in her underwear after Frederick’s of Hollywood approached her to become a brand   but is thrilled she did it so soon after giving birth to Journey  seven months as she wants to give a positive message to other women.

She said At a certain point, I didn’t have a choice. The time was ticking down. I was like All right  we’re gonna do this  It forces you to love your body as it is  which is a beautiful thing. I didn’t think I was ready but then I was in the pieces and it forced me to go. A woman’s body in miraculous.

The fact that I am in lingerie right now and I just had my third human being come out of my body five months ago is incredible.’ I mean, it’s crazy what we’re able to do as women! So that was empowering and unanticipated.

And the 30-year-old actress  who also has Noah, four, and Bodhi  three, with Brian Austin Green – admits it is a lot of work to get back the post-baby body she wants.

She added to People magazine I do generally bounce back pretty quick, but it does take a lot of work – I had to work out harder this time than I had to ever work out in my life.

It was difficult but I will say, the appreciation I have for what my body is capable of and how motivated I can be in my ability to achieve a goal is greatly enhanced from going through that experience.