Ryan started several adorable, multiple-part birthday posts filled with this pic and a caption that began: "Happy birthday, punk. I love you more than any strangers need read, but..."
Ryan wrote, "You are the coolest."
Ryan wrote, "Smartest."
Ryan continued, "...Most beautiful daughter a father could ever have..."
Ryan continued, "...and even though you're no longer a child, you'll always be my little girl. Happy 18th, princess." The photo appears to be from from March 3, 2002,
Ryan posted this rockin' photo of his pink-haired daughter in one of his many bday posts.
The doting dad posted one of these snaps in his multi-part birthday message. The image shows his daughter hanging out at the Hollywood Bowl in Los Angeles.
Posting a throwback photo, Reese wrote, "Happy 18th Birthday to my sweet girl @avaphillippe ! Your kindness, grace, intelligence and humor never cease to amaze me. I love you and your HUGE [heart] and I feel so lucky that I get to be your mom. #proudmom #18
Ava posted this Instagram and wrote, "18 letters that made me cry (hard) today, courtesy of my lovely mother."
Wearing a Disney princess costume, Ava posted this photo of herself on her birthday with the simple caption, "#18."