Jennifer Aniston, 38, and the goateed and fedora-wearing man joined Courteney Cox and David Arquette on a private jet.

“They touched down at Los Cabos International Airport at about 2 p.m. local time,” an eyewitness tells OK!. “As they walked out onto the tarmac, under an 80-degree sun and clear, blue sky, Jen and Courteney looked really happy to be back in Los Cabos.”

Outside the terminal, the party was picked up by a chauffer-driven white Cadillac Escalade.. After a 30-minute drive through the Mexican desert into Los Cabos, Jen, Courteney, David and the mystery man were spotted on the balcony of their rented beach home, chatting, drinking and dining at a table overlooking the gorgeous, windswept Sea of Cortez.