Damon didn't think she was really Circe from Greek Mythology. If she was. Then she would turn him into a pig.
"I don't think your real. If you are Circe. Then you would have turn me into a pig by now." Damon said confidently.
Circe sees Damon was being cocky. She needed to teach him a lesson. Maybe turning him, into a pig, will teach him.
"Oh. You doubt my powers young man? You don't believe I am the real Circe?" She ask the young man.
"That is what I'm saying." Said Damon. Circe just smirk. She was going to teach Damon a lesson.
"Very well. Let me show you I'm the real thing." Circe waves her wand and place a spell on Damon.
Puffs of smoke surrounds Damon as it change him. When it clear. A fat pig stood where Damon use to be.
"Oink oink squeal." Circe walks over to Damon. "Now do you believe me now young man. Off to the pig sty with you."
Circe then takes Damon to his new home.