The guy had 4 Kings. The girl had a Royal Flush, which included a King of Spades. Between the two hands, there were 5 Kings, and two of them were the King of Spades.
The guy had 4 Kings. The girl had a Royal Flush, which included a King of Spades. Between the two hands, there were 5 Kings, and two of them were the King of Spades.