Casey Affleck, 46, can't keep hands off new girlfriend Caylee

Casey Affleck put on a public display of affection recently with his new, much younger girlfriend, Caylee Cowan. The two canoodled in plain sight in Los Angeles last week before parting ways.

Casey Affleck, 46, wraps arm around girlfriend Caylee Cowan, 23, at alfresco lunch in LA

Casey Affleck, 46 and girlfriend Caylee, 24, attend Cannes as she puts on busty display, Celebrity News, Showbiz & TV

Casey Affleck and Caylee Cowan PDA during visit to grocery store in Studio City.

Casey Affleck's girlfriend Caylee Cowan, 23, flashes a diamond ring on engagement finger

Casey Affleck holds hands with girlfriend Caylee Cowan as they grab lunch with friends in LA

Casey Affleck, 46 and girlfriend Caylee, 24, attend Cannes as she puts on busty display, Celebrity News, Showbiz & TV

Casey Affleck, 46, can't keep hands off new girlfriend Caylee Cowan, 23, as they kiss goodbye in LA

Casey Affleck & Girlfriend Caylee Cowan Hold Hands While Shopping in Beverly Hills, Casey Affleck, Caylee Cowan

Casey Affleck holds hands with girlfriend Caylee Cowan as they grab lunch with friends in LA

Casey Affleck, 46, and girlfriend Caylee Cowan, 23, passionately kiss to mark a year since they met

Casey Affleck's girlfriend Caylee Cowan, 24, scares off intruder at their LA home

Casey Affleck, 46, can't keep hands off new girlfriend Caylee Cowan, 23, as they kiss goodbye in LA