Though it's hard to believe, on July 6, Sylvester Stallone turned 78 ... She also emphasized how happy she feels to be his daughter. Sistine and her sisters Sophia and Scarlet admitted that ...

Sylvester wrote in the caption, "Happy birthday to @sistinestallone our amazing daughter, who brings nothing but happiness. So so proud to be your father!" Never miss a story — sign up for ...

Sylvester Stallone's daughter Sistine has ... Sistine shared a sweet note about her dad to accompany the shots, saying: "Happy birthday to the greatest dad. I feel lucky to have you." ...