You and Percy were best friends.

You guys had gotten back to camp from a quest

When you got back you were told you had a new little brother Tanner was only 6. But he was a small 6 year old.

You adored him. He brought out the mom in you

One night you were with Tanner in your lap as you sat at the camp fire Tanner being so young he was fast asleep

When Percy sat beside you.

"You are aware he isn't your kid, right?" he said with a chuckle seeing how much of a mom you were to Tanner