As for coparenting Bradley's 7-year-old and Gigi's 4-year-old, the source continued, “He is such a gentleman and he blends so seamlessly into their family. Gigi and Bradley have a lot in common and his daughter, Lea, is so sweet and gentle with Khai.”

Gigi Hadid has made things Instagram official with Bradley Cooper in celebration of a major milestone. On Saturday, the model shared a carousel of photos from her 30th birthday bash, which she celebrated last month. Among the snaps include a sweet moment of Hadid and Cooper kissing in front of a birthday cake.

Bradley Cooper's daughter is 'so sweet and gentle' with Gigi Hadid's child, a source tells PEOPLE exclusively. The actor shares daughter Lea De Seine with Irina Shayk, while the model shares her daughter Khai with Zayn Malik.