Robin Thicke and April Love Geary’s eldest daughter is “the best big sister” to her newborn baby brother.

April Love Geary's Instagram (c) post

April Love Geary's Instagram (c) post

The couple announced the birth of their son Luca Patrick last week, and April has now revealed their eldest daughter, two-year-old Mia Love, has already welcomed her baby brother into the family with open arms.

April - who also has daughter Lola Alain, 21 months, with Robin - wrote on Instagram alongside a picture of Mia and Luca cuddling: “I was NOT expecting her to be this happy. She keeps saying “he’s so cute” “he loves me so much” “can I pet him?” She’s the best big sis (sic)”

The 26-year-old model announced the birth of Luca last week by posting a picture of herself and the new addition to her family.

She wrote at the time: "My Luca Patrick, you are so perfect. Mommy & daddy love you so much. (sic)”

Robin, 43, also paid tribute to his son over the weekend, who is his fourth child, as he also has 10-year-old son Julian Fuego with ex-wife Paula Patton.

He wrote: "Luca Patrick Thicke is in the house!!! Thank you God, and my darling @Aprillovegeary for this blessing. I Wish my Dad and Andre Harrell were still here to meet him, But I will do my best everyday to teach him what they taught me about Family, Friendship and Love. Thank you all for your kindness and support! I love you Luca! (sic)”

April revealed her third pregnancy in October, sharing a picture of her baby bump on Instagram and writing: "Sorry we can't hang out, there's a pandemic & I'm pregnant... again. We love consistency!"

In May, April joked that she was keen to expand her brood again, after gushing over a photo of Robin.

She wrote on Instagram at the time: “GET ME PREGNANT AGAIN! Jk don't but like Omg. I mean honestly, who does he think he is dropping a picture like this so casually? And not even warning me??? Like??? Meet me in the bedroom??? (sic)”