It seems that Kate Middleton is annoyed by her brother in law - Prince Harry – who recently moved in to the Kensington palace, where Kate is living with her husband, Prince William.

So, Kate Middleton warned Prince Harry to be on his best behavior!

According to National Enquirer, Kate is annoyed by the fact that Prince Harry moved in to Kensington because she thinks his presence will cause problems in her marriage.

It seems that the Duchess of Cambridge does not approve with Harry’s lifestyle and she warned him not to host parties at the house during the night or not to drink with his friends.

Princess Kate says that Prince Karry is a bad influence on William, who forgets that he is a married man when he spends time with his brother and he behaves like a teenager.

Kate and William had some problems lately, and it was rumored that they married life is not as happy as everybody thought.