Well, it could be a sweet moment of relaxation. Maybe they've just had a long adventure and Annabeth is exhausted. Percy is just there, being a comforting presence as she takes a nap on his lap. It shows their closeness and trust in each other.
Percy might feel a deep sense of contentment. He and Annabeth have a special bond, and having her trust him enough to sleep in his lap could make him feel warm and happy inside. He may also feel a bit nervous, not wanting to move and disturb her peaceful slumber.
Their relationship might become more intimate. This simple act of Annabeth sleeping on Percy's lap can break down some barriers between them. It shows a level of vulnerability from Annabeth and a protective side from Percy.
Annabeth is known for her intelligence and strategic thinking. She is a strong and independent character. Percy, on the other hand, is brave and has a strong connection to the water due to his father being Poseidon. In the fanfic, when Annabeth sits in Percy's lap, it might be a way to show their unique relationship which has developed over the course of their many shared experiences in the Percy Jackson universe.
One possible scenario could be that they are on a long journey and Annabeth is exhausted. Percy offers his lap as a place for her to rest, showing his care for her. Another might be after a difficult battle where Annabeth is drained, and Percy's lap becomes a safe and comfortable place for her to recover.
Perhaps they are in a romantic setting. They could be sitting by a campfire at Camp Half - Blood, and Annabeth spontaneously sits in Percy's lap as a sign of their growing affection for each other. This could lead to a sweet moment of them sharing stories or just enjoying each other's company in a more intimate way.
Well, it could be a sweet moment of affection. Maybe they're in a quiet place, like by the Camp Half - Blood lake. Annabeth sits on Percy's lap as they talk about their future together, their next adventure perhaps, or just sharing some personal feelings they haven't had a chance to before.
He could be a bit surprised at first, but then a warm feeling would spread through him. He might gently stroke her hair or cover her with a jacket if she seemed cold, all while having a soft smile on his face.
They would probably be very affectionate. Annabeth might rest her head on Percy's shoulder while they talk in hushed voices. Percy would likely have his arms around her, holding her close and giving her a sense of security.
It can develop through this moment of closeness. Just the act of her sleeping on him can show a level of trust, which Percy might recognize and it deepens their bond.