Sylvester Stallone and Wife Celebrates Daughter Sistine's High School Graduation -- See Pics!

The  Expendable star attended his 18-year-old daughter Sistine's high school graduation,
commemorating the milestone moment on Instagram, writing, "Our Sistine graduates! Congratulations to a wonderful young lady!"

Sistine's mom, Jennifer Flavin Stallone, also celebrated, writing, "Sistine's graduation!🎉 You are hard-working, smart, and kind💜-always being a good person is what I am most proud of!⭐️#goodness #compassionate #caring."