We were reading stories from greek mythology the other day, and the boys were mystified by the behavior of Hera, wife of Zeus and goddess of marriage:
3Po: I don't get it, mama, why was Hera so angry with all those women? Why did she want to punish them?
Me: She was angry at them because she caught them kissing her husband, Zeus. She didn't like him cheating on her, and she took out her anger on the women.
3Po: What's cheating?
Me: [3-second pause] It's when married men kiss other women who aren't their wives. Hera was married to Zeus, and Zeus liked to kiss other women.
3Po: So what? Why can't he kiss other women?
Me: [3-second pause, while chewing on lower lip and trying not to smile] Well, honey, wives don't like it when their husbands kiss other women. When you marry someone, you're making a promise not to kiss anyone else.
Jammy: Well, then, when I get married, I'm going to marry the beautifullest girl in the world.