Christina Aguilera’s calm baby

Christina Aguilera’s baby daughter is very ”chill”.

The ‘Beautiful’ hitmaker and fiancé Matthew Rutler welcomed Summer Rain into the world five months ago and the blonde beauty feels ”very blessed” to have such an easy-going infant.

She said: ”I have a chill baby, she’s just so calm and so easy to make laugh and smile, she’s just a breeze, thank God!

”She’s just so beautiful, these big blue eyes, she’s just so gorge…very happy and feel very blessed having Summer Rain in my life.”

The ‘Voice’ mentor recently shared a picture of Summer Rain, taken from behind, and she admits she loves the picture because of the tot’s ”chunky legs”.

She said: ”Her little tushy! The little chunky legs. I love it, I love to nibble on them.”

And Christina, 34, says her seven-year-old son Max – who she has with ex-husband Jordan Bratman – dotes on his sister and wants to ”teach her everything”.

She told ‘Extra’: ”He’s just so endearing and sweet to her. The only thing, I’m like, ‘Wash your hands before you touch the baby’… you don’t want the germs.

”He’s in school, he’s seven, there’s a little age gap, but it’s perfect though, because then they don’t fight over toys. But he’s the big helper and the big teacher, so he’s awesome. He’s just so loving and sweet. I’m like, ‘How old are you?’ He’s like a grandma to her; he’s just like, ‘I’ll teach you everything.’ ”