Erm...

1(anxious look on face): Hey, you got chicken pox is it?
2(covering face): Huh? No lah... They are just pimples. I'm going to have menses soon, I guess.
1: Huh?! So many?(covering her face too)
2: Hmm... Ya...
1: Oh............. Hahahaha.... Sorry ah..(laughing away)
2: (laughing too)

Ask no more!