Reese Witherspoon Shares a Throwback Snap of Her Now-Teenagers in Halloween Costumes

What happens when two witches & a Transformer go trick-or-greeting?!? 🎃🍂🍁 #Halloween #2007 #FBF #MomJokes 😉

A photo posted by Reese Witherspoon (@reesewitherspoon) on

Reese Witherspoon shared an adorable throwback Halloween snap to Instagram on Friday. The actress posted a photo of herself and her kids Ava and Deacon Phillippe dressed up for a night of trick-or-treating in 2007. Deacon was unrecognizable in a Transformer costume, while Reese and Ava were matching witches — doesn't Reese sort of resemble Katy Perry?

The Oscar winner may have been feeling especially nostalgic this week as her son Deacon, whom she shares with ex-husband Ryan Phillippe, officially became a teenager. Reese rang in the milestone with a social media shout-out to her "sweet boy," writing, "You are such a ray of sunshine in all of our lives. Your sense of humor, kindness, and joy never cease to amaze me!"