Caylee Cowan, Casey Affleck at Vanity Fair Oscar Party / id

BEVERLY HILLS, CALIFORNIA - MARCH 12: (L-R) Caylee Cowan and Casey Affleck attend the 2023 Vanity Fair Oscar Party hosted by Radhika Jones at Wallis A Stock Photo - Alamy

Caylee Cowan, Casey Affleck at Vanity Fair Oscar Party / id : 5419839 by Matteo Prandoni/

Casey Affleck Joins Younger Girlfriend Caylee Cowan at Oscar Party

2023 Vanity Fair Oscar Party Editorial Stock Image - Image of 2023, hillsquot: 271913824

Caylee Cowan and Casey Affleck attend Vas Morgan's Halloween party in West Hollywood, California

Caylee Cowan and Casey Affleck attend the amfAR Cannes Gala 2022 at Hotel du Cap-Eden-Roc, on May 26, 2022 in Cap d'Antibes, France. Photo by David Niviere/ABACAPRESS.COM Stock Photo - Alamy

Caylee Cowan and Casey Affleck at the 2023 Vanity Fair Oscar Party News Photo - Getty Images

Caylee Cowan, Casey Affleck at SHEIN ZEUPHORIA AFTER PARTY WITH MEGAN THEE STALLION, JHENE AIKO + ALESSO / id : 4735321 by Jason Sean Weiss/

LOS ANGELES - MAR 12: Caylee Cowan, Casey Affleck at the 2023 Vanity Fair Oscar Party at the Wallis Annenberg Center for the Performing Arts on March 12, 2023 in Beverly Hills, CA Stock Photo - Alamy

Floriana Lima, Casey Affleck at VANITY FAIR: 2017 OSCAR PARTY / id : 2376531 by Billy Farrell/BFA.

Caylee Cowan, Casey Affleck at Vanity Fair Oscar Party / id : 5419839 by Matteo Prandoni/

Casey Affleck, 46, packs on the PDA with girlfriend Caylee Cowan, 23, as she gives him a kiss

Oscar winner, 61, takes the plunge in dramatic, low-cut gown, plus more stars at the 2022 Venice International Film Festival ICYMI, Gallery