Annabeth lay awake on her bunk in the dark Athena cabin. When she thought that everyone was asleep, she reached under the covers where she was hiding her magical Yankees cap. She put it on her head and became invisible before making any other movements.

Quietly, Annabeth slipped out from under the covers and tiptoed away from her bed. Taking one last look around to confirm that her siblings were asleep, she opened the door just wide enough for her to slip through. She closed the door carefully behind her, pausing on the step in front of the Athena cabin's door.

She tiptoed invisibly past other cabins to her destination.

When she reached the Poseidon cabin, she stopped in front of the door and composed herself. She took a deep breath as she turned the handle. Steeling herself, she opened the door and stepped inside, closing it quickly behind her.

There was only one person in the cabin. Her boyfriend, Percy, looked toward the door. He was sitting on his bed. She didn't know what he had been doing, but he stopped and smiled playfully.

When she wondered why he wasn't quite making eye contact, Annabeth realized that she was still invisible. She pulled off her cap.

Percy's smile widened. He walked toward her.

Annabeth closed the distance between them and wrapped her arms around his neck. She felt his hands on her hips.

Percy drew her closer and kissed her. A leisurely, lingering kiss.

When they pulled apart, Annabeth felt lightheaded.

"Isn't this against the rules?" Percy teased, grinning at her.

Annabeth traced circles on the back of his neck. "Technically," she said. "But some things are more important than rules."

Percy kissed her softly. "You're more important than anything, to me."

Annabeth responded by kissing him deeply. Percy kissed her back hungrily. She felt him squeezing her tighter. She couldn't get close enough to him. His hands traveled up and down her back and along her sides. She planted kisses up his neck and behind his ear.

Percy's hands were playing with the hem of her t-shirt, stroking the skin of her belly. Annabeth grabbed the hem of his shirt, trying to tug it off. Percy's eyes lit up playfully as he pulled the shirt over his head, dropping it on the floor.

Annabeth looked him over, drinking him in. There was no denying it - her boyfriend was hot. They backed up until they ran into the bed. Percy sat down, pulling her into his lap. His hands slid up, under her shirt. She let out a whimper.

Annabeth's shirt came off. She could feel Percy's eyes raking over her eagerly.

"You're amazing," Percy blurted out.

Annabeth giggled, covering him with kisses.

There was no slowing down after that. One by one, each article of clothing hit the floor. They collapsed on the bed together.

She encouraged Percy, letting him know that she wanted to keep going. Being a maiden just wasn't for me anymore, Annabeth thought.