Disclaimer: Please note that I don't own these characters JKR does, I'm only playing in her magical world.
"James?", Albus asked his brother.
James, who was at the moment very busy playing with his toy-quidditch-players ,answered very annoyed.
"Yes?!"
"Why is mummy fat?"
"She's not fat!"
"Yes, she is!"
"No, I'm not", Ginny said as she walked in and started picking up dirty laundry.
"Yes you are. But why are you?", Al asked curiously.
"Tomorrow Al, now it's time for you, and your brother to go to bed"
"But", James started.
"No buts, bed, now, we'll talk tomorrow"
The next day, Al was sitting in the living room with his father. Harry was reading him a story. After a moment Albus said:
"Dad?"
"Yes, son"
"Why is mummy so fat?"
"Because your new brother or sister is in there", Harry said.
"Oh", Al said.
After a minute he spoke again.
"How did it get in? Did mum eat it?"
"No, no, no, she didn't eat it"
"How how did it get in then?"
Harry started squirming.
"Um... Eh.."
"Yeah Harry, how? Tell your son", Ginny, who just came in, said with a smirk
"Umm... Love?", Harry said and looked at Ginny.
"Yeah, love", Ginny said and smiled.
A/N: R&R : ) Constructive criticism is very welcome. Have a Harry Christmas!