Diesel shared a snapshot of their adorable get together on Facebook, posting a photo of Gadot bottle-feeding her little girl, while his daughter is curled up asleep in his arms.
"When we aren't playing superheroes... All love," he captioned the cute pic.
Gadot and her husband, Yaron Versano, welcomed their youngest daughter in March. The couple also share a 5-year-old daughter, Alma.
Diesel and his girlfriend, Paloma Jimenez, also share a 6-year-old son, Vincent, and a 2-year-old daughter, Pauline -- named in honor of his late friend and former co-star Paul Walker.