115px-Lumpy Space Prince - Drink

Lumpy Space Prince with mug.

The Lumpy Space Prince is the gender-swapped version of Lumpy Space Princess. He was confirmed to exist on Natasha's Formspring, he will appear in the season three episode "Adventure Time with Fionna and Cake".It is unknown whether or not his voice will sound like a woman's like how Lumpy Space Princess' voice sounds like the opposite of her gender.