Luffy gave you an egg when you first met. He said that it was a sign of friendship. You kept this egg safe, thinking it was a regular egg to eat.

Boy were you wrong..

While taking a nap, you hear the egg cracking, when a baby bird emerges, and starts letting out shrill squawks. Luffy gave you a cockatoo egg. A fucking cockatoo.

"Luffy!" You shouted, and he immediately swung into your room with a knowing grin.

"It hatched??" - "During my nap." Luffy just grinned. "Well, you said you liked birds when we first met!"