E! News has learned that the Jurassic World star, 39, and his author girlfriend, 29, flew to Cabo on New Year's Eve to ring in 2019. The couple was joined on the trip by Katherine's siblings and her mother, Maria Shriver, as well as Chris' son, Jack, who he shares with his ex, Anna Faris.
"On New Year's Day everyone hung out together by the pool and the beach celebrating the first day of 2019," a source tells E! News. "Katherine and Chris both spent time swimming and laying out next to each other. Chris seems very close with all of the family and like one of the gang. He was joking around with Katherine's brothers and having fun. They all shared a lot of laughs and good times."
The insider adds, "Chris and Katherine took photos together and shared a few kisses."