How does baby come out from the tummy ?

This is a question from Isaiah ... for a not yet 4 years old boy ...

Last Sun at church, I pointed at Auntie Campion's tummy and told him that Jessie's sister will come out very soon, just like Joshua.
"Mama, how does baby come out from the tummy ?" Isaiah asked ..... Mama ... :O

Last night after we received a call and know that Campion will go to the hospital soon. I told Isaiah again that Jessie's sister will come out very very soon.
"Mama, how does baby come out from the tummy ?" Isaiah asked, again .... Mama ... :O again ...

Baba heard that and asked Isaiah if he really wanted to know.

"YES !" Isaiah replied.
"OK, I'll tell you, but you have to remember, babies will only come out from women's tummy, but not men ... " Baba said seriously.
"Yes... only for women ?" Isaiah puzzled, "OK !"

(** Mama and Ruby Jeje stopped doing whatever they're on hand and looked at them.)

"You lay down on the sofa first, pretending to be a pregnant woman." Baba said.
But of course, Saisai would not follow ....
"OK, then we use JosB to show you," Baba suggested.

(** Mama and Ruby Jeje :O ... )

Baba put JosB on the sofa and got a Winnie Pooh toy.
"Winnie Pooh is a baby.... " Baba explained.
Then, Baba put it on top of JosB's tummy and took out.
"It's just like this ! Baby comes out from mama's tummy !" Baba told Saisai.
"Oh.... I know ...." Saisai seemed to be satisfied with Baba's answer.

What a good family education lesson ! :P