Bella won a contest held by CBC Kids, which provides educational programming targeted at children in Canada. As her prize, she got to bring her family to Mr Trudeau's office.
CBC Kids shared these sweet pictures, taken by Mr Trudeau's official photographer Adam Scotti, on social media.
The pillow fort got Mr Trudeau's seal of approval:
"As prime minister, I would make sure everyone has homes and everyone is safe. I would hug everyone. I would make sure animals and the world around us are kept safe. I would make sure every Canadian is healthy. I would show kindness to everyone."
Earlier this month, Mr Trudeau took his 3-year-old son to work, which resulted in these sweet pictures. Last week, he "photobombed" a prom photo shoot while out for a run. Click for more trending news
Get Breaking news, live coverage, and Latest News from India and around the world on NDTV.com. Catch all the Live TV action on NDTV 24x7 and NDTV India. Like us on Facebook or follow us on Twitter and Instagram for latest news and live news updates.