“That’s right, a talking sponge that wears pants represents lust.”

The seven main characters on SpongeBob SquarePants were supposedly based on the seven deadly sins:

Sloth: Patrick

Wrath: Squidward

Greed: Mr. Krabs

Envy: Plankton

Gluttony: Gary

Pride: Sandy

Lust: SpongeBob

via SpongeBob SquarePants and the seven deadly sins.