The stray dog was a female corgi. Before she'd gone astray, her mother's owner had called her Fifi. She entered Jeff's house, the door somehow being no barrier for her, and headed toward the kitchen to get herself something to eat.
Meanwhile, Jeff and Jamie tried to figure out what to do. The ideas were getting substantially less ambitious and thought out. "We could explore the house..." She suggested.
"Why?" he asked. He got a blank look at that. Clearly, his sister was much less aware of what was going on than him. "Okay," he said, agreeably, prepared to follow her lead. As he followed her, his pants, being rather loose, came off...not that he was paying attention.
The corgi, meanwhile, had grown in size...enough to open the refrigerator.