United Kingdom, Jan. 28 -- Paris Hilton's foster dog has returned to her owners.

The 43-year-old socialite opened up her home to Chihuahua mix Zuzu, who was being cared for at the Pasadena Humane Society after her owners lost their homes in the devastating Los Angeles wildfires, and despite previously saying she was going to permanently rehome the pooch, she's now revealed the pet has returned to her family.

She captioned a video documenting the reunion: "Letting go is never easy, but moments like this remind me why fostering is so important.

"Zuzu came into my life during one of the most heartbreaking times, and she was truly a beacon of hope. Saying goodbye to her was so hard, but seeing her family's faces when they arrived to bring ...