Hilary Duff thinks her son is ''cute when he's mad.''

The doting mother of Luca Cruz shared an adorable snap of her angry baby on twitter Wednesday (13.06.12).

The new parent wrote: ''I sent my dad this pic and he said 'Luca told me to tell you, you made his oatmeal lumpy' LOL he is cute when he's mad!''

The 24-year-old was pictured trying to cheer her Offspring up by planted kisses on his face, an action she cannot stop doing ever since welcoming him to the world on March 20.

The wife of former NHL player MIKE COMRIE said on May 12: ''Babies smell so good! I can't get enough. Poor guy gets loved on so much . . . I wonder if he ever feels like, 'Yo Mom, Dad, give me some space!''

She later asked: ''Can you kiss your kid to much? This is getting out of hand!''

Hilary has been trying to drop the baby weight in a healthy way.

She recently said: ''Obviously, I'm not where I want to be eventually, but I'm working hard and I'm doing everything I can to lose the weight the right way. I'm breast-feeding, so you have to be careful and not do anything too drastic.

''The second I start to get down like 'what happened to my body,' I look at my beautiful baby and I've never been more appreciative for this body that I have.''