The husband notices that his wife always has a small pouch with her. He asks her about it. She refused to disclose its contents and pleads him to never check it.
Curious, once when the wife is taking a shower, the man checks the pouch, it has 5 beans and 100$. He can't resist and confronts her. She says she will tell him everything if he promises it won't affect their marriage.
The man makes the promise. Then the wife tells him that she kept a bean everytime she had sex before marriage. The man laughs at her innocence and says, "that's cool yo. But what about the 100$ ?"
"Ah! That's from selling the beans"