Reese Witherspoon and ex-husband Ryan Phillippe reunited to celebrate their son Deacon graduating from #NYU 🥹💜. See all the details at the link in bio. (📸: Lawrence Lucier/Getty Images; Dimitrios Kambouris/Getty Images for WSJ. Magazine Innovators Awards; Evan Agostini/Getty Images; MATT CAMPBELL/AFP via Getty Images; Evan Agostini/Getty Images for Fox Studios)