When Londoner Paris Zarcilla went to his room to get a sweater, he was surprised to find a strange cat in his house. Even more surprising was that this strange cat had given birth to four kittens under his bed.

Instantly, Paris became a cat dad. Now he has to take care of four kittens and their mother so he’s been documenting his experience with pictures to share on the Internet. Becoming a cat dad is probably a lot less shocking than finding out you’re a real dad, but it still takes maturity to take responsibility for four little lives that will change your own life forever.

To read about the man who discovered he’s now a cat dad, click here.