What does 2 Samuel 13:9 mean?

So Amnon lay down and pretended to be sick. When the king came to see him, Amnon asked, 'Please let my sister Tamar come and make some food here where I can watch her and eat from her hands.' 2 Samuel 13:9 - Modern Text Bible

(Amnon follows Jonadab's scheme, using his father's concern to get what he wants.)