Arnold Schwarzenegger bared it all in "Terminator" 40 years ago ... and now his son, Patrick Schwarzenegger, is keeping the family tradition alive -- going full frontal in "The White Lotus."
The HBO show's season 3 kicked off Sunday night, and Patrick's character, Saxon Ratliff, wasted no time -- he checked into the luxe Thai resort with his family, and then promptly checked out of his clothes in a full-on NSFW scene.