As I put down the phone:
K: Who is that mommy?
K: Which aunty?
Me: My step-mother
K: You have a step-mother?
K: How come? Did Amah die?
Me: No. She's in Seremban isn't she?
K: Then how come you have a step-mother?
Me: Amah and Ah Kong had a divorce and Ah Kong married another wife.
K: What is divorce?
Me: (cracking my head)...ummm... it means getting un-married. Divorce is like cancelling your marriage.
Thank goodness she didn't ask why they wanted to cancel their marriage.
Thought the conversation had ended but the next day, one more question.
K: Mommy, then you stayed with Ah Kong ah?
K: You know, when Amah and Ah Kong got divorced, you stayed with Ah Kong is it?
Me:No, me and all your "Ah Koos" (uncles) stayed with Amah.
K: How come?
Me: Because we are closer to Amah.
K: Did you miss Ah Kong?
Me: Eeeerrrrr... not really.
Me: Because I was only 2 years old and don't know anything.
K: When you 2 years old, you don't know anything ah?
End of conversation.
I never really thought to explain my parents situation to my children. Kind of caught me by surprise when all these questions came up. Next time must be more prepared.