*pause for effect*
Yes, I teach children about Jesus.
There are no girls in my class, just 3 boys.
This year we are studying The Old Testament....
Lesson: Adam and Eve have children and populate the Earth.
Kid: So what you're saying is, brothers and sisters have babies together?
*cue simultaneous groans and ewws*
Me: *blink blink* Um, yes...
Kids: But how does that-
Me: Hey, you know what...ask your parents!
And that my friends, is how it's done.