Borrowed money repaid

Santa leaves the house to go pick up dinner for he and his wife. Shortly after leaving, the doorbell rings.
It is Banta, her husbands best friend, so she invites him in. Since she is in her bathrobe Banta says to her, "you have the nicest breasts".
She says "thanks but my husband would be mad if he heard you".
Banta replies "I would pay you Rs 500 just to see one of them". She thinks for a minute and decides to do it.
Banta says "Wow that is the most perfect breast I ever saw....I will give you another Rs 500 if you show me both at the same time".
She does it, and he gives her the money. The friend leaves and her husband comes home.
She says "your best friend, Banta, just stopped by."
He answers "Great did he leave the Rs 1000 he owed me."