You met Percy at camp halfblood. He's new and Luke showed him around and introduced him to you. You talked for a bit and actually had a lot in common. He wanted to talk to his mom about you so left camp and waited for her at the hill. She drove her car to the side of the road and stepped out, walking towards Percy. "So what did you want to tell me, honey?" Percy just smiled a bit and then answered "I met this girl back at camp and... she's really nice and we have a lot in common... and she's also really pretty."