Of course he chose the moment to show up when Ray was distracted. But the knock at the door brought his focus back. he pulled it open, and found a small smile. He might have alcohol on hand, but not until after House looked at Reina.
"They're in my office, watching TV." He wasn't sure how the girls would react to Greg, and the fact he and Ray looked enough alike to be twins. Given that they were twins themselves, he hoped they wouldn't even question it.
He went around House to close the door. "Thank you for coming over." He started toward the office, stopping short. The girls had apparently gotten up to see who was visiting, and stood just inside the office door.