Sylvester Stallone Poses With His Two Stunning Teenage Daughters Sophia and Sistine — See the Pic!

Sylvester Stallone isn't the only knockout in his family!

The Rocky star posed two of his daughters Sophia, 19, and Sistine, 17, in an Instagram snapshot on Thursday, May 12 — and the sisters are so grown up and gorgeous!

View this post on Instagram

Growing up fast!

A post shared by Sly Stallone (@officialslystallone) on

"Growing up fast!" the 69-year-old actor captioned the sweet photo of the three all dressed up.

RELATED: Sylvester Stallone Shares a Fun Selfie With Daughters Sistine and Scarlet — See the Pic!

Sylvester and his wife, Jennifer Flavin — who tied the knot in 1997 — are also parents to a younger daughter Scarlet, 13. The actor is additionally a father to sons Seargeoh Stallone, 37, and Sage Stallone (who sadly died from a heart disease in 2012 at age 36) with his first wife, Sasha Czack.

Click through the gallery below to more celebrity kids all grown up!