Princesses Leonore and Estelle of Sweden captured our hearts at little brother/cousin Prince Oscar's christening last week.
The royal cousins - Leonore, 2, is the daughter of Princess Madeleine and Mr. Christopher O'Neill, and Estelle, 4, is the daughter of Crown Princess Victoria and Prince Daniel - are very close, according to a Facebook caption posted by Princess Madeleine.
See the two steal the show at Prince Oscar's christening: