Leo

“Correct." Kekrops sounded bitter, like he regretted his decision. "My people were the original Athenians--the gemini."
"Like your zodiac sign?" Percy asked. "I'm a Leo."
"No, stupid," Leo said. "I'm a Leo. You're a Percy.”
― Rick Riordan, The Blood of Olympus

“This is the Valdezinator, of course!’ He puffed out his chest. ‘It works by, um, translating your feelings into music as you manipulate the gears. It’s really meant for me, a child of Hephaestus, to use, though. I don’t know if you could –’

‘I am the god of music!’ Apollo cried. ‘I can certainly master the Valdezinator. I must! It is my duty!”
― Rick Riordan, The Blood of Olympus

“Like the zodiac sign?' Percy asked. 'I'm a Leo.'
'No, stupid,' Leo said, 'I'm a Leo. You're a Percy.”
― Rick Riordan, The Blood of Olympus

“She grabbed his face and pulled him into a kiss, which effectively shut him up.”
― Rick Riordan, The House of Hades