The couple played the Pie Face Game with Perry's family as part of the celebration, ET reports.
Perry faced off against her sister, Angela Hudson, and ended up with a face full of whipped cream. She was nice enough to share, though, hilariously smearing some on her sister's face.
Next up, Bloom went against the "Roar" singer's brother, David Hudson. He had no better luck than his girlfriend. Hudson bested him after a few tense moments.
"He cheated," the 39-year-old actor joked in the caption of the silly video.
These two certainly know how to have a good time!