Jessica Simpson is in awe of her daughter, Maxwell.

The 33-year-old star, who gave birth to her second child, son Ace Knute, in June with her fiance Eric Johnson, posted an adorable picture of her blued-eyed 15-month-old little girl on Twitter and boasted about how cute she is.

She wrote alongside the photograph on Saturday (17.08.13): ''Maxwell is crazy beautiful.''

The fashion designer loves being around her children and hates leaving them to go the the gym for an hour despite being desperate to get her pre-pregnancy figure back.

A source recently revealed: ''She would rather play with her kids than work out. She feels really guilty whenever she leaves them.''

After her first pregnancy - during which she gained 70 pounds - Jessica subsequently lost 50 of them by going on a Weight Watchers diet, which she said worked well for her and wasn't too strict.

She said at the time: ''I didn't need to be perfect to get here - to lose over 50lbs. It lets me be me, and I'm only human. I love food, I love life. I had no idea I could be so in control and so free at the same time.''