Reese Witherspoon and Ryan Phillippe are together again.
The former couple reunited this week to celebrate their son Deacon's graduation, and Ryan posted a series of images and videos documenting the moment.
"Homeschool graduation," Ryan captioned the Instagram post.
In a photo from the celebration, the proud parents flanked Deacon, who rocked an orange cap and gown. Ryan donned his own black cap and gown for the occasion, whereas Reese wore a polka dot dress and a smile.
"I played principal," Ryan noted.
A fun video showed Deacon receiving his diploma and shaking hands with his father-turned-principal and friends Matt Sinn and Benjamin Massing, who acted as the home school administration. Deacon happily held up his diploma and toss his cap into the air, only to have it land in a pool. Reese can be seen rescuing the cap before it drowns.
"Best dad ever," Deacon commented on Ryan's post. Actor Justin Long also marveled at the youthfulness of the "Cruel Intentions" stars.
"All three of you could be recent high school graduates!," he commented.

Reese and Ryan were married from 1999 to 2007. In addition to Deacon, the couple shares 22-year-old daughter Ava.
It's not completely uncommon for Reese and Ryan reunite for the sake of their children, having done so last October for Deacon's 18th birthday.
"Happy 18th birthday to our gorgeous, smart, talented and caring son," Ryan captioned a photo. "You are a true light in this world and are so loved by all who know you. We are lucky to be your mom and dad. Love you, pup."
He added, "I'd say we did pretty good @reesewitherspoon."
These two could teach a master class in graceful co-parenting.