After Tree Trunks performs her own marriage ceremony , Bubblegum relents .
Princess Bubblegum tries to prove that he is a fraud , and when she is unable to find evidence convicting him , she throws everyone -- including Tree Trunks and Mr. Pig -- in prison .
After Tree Trunks performs her own marriage ceremony , Princess Bubblegum relents .
Princess Bubblegum tries to prove that he is a fraud , and when she is unable to find evidence convicting him , she throws everyone -- including Tree Trunks and Mr. Pig -- in prison .