Nightmare he fell in love with his little brother Dream in a romantic way, he killed everyone, and captured Dream his brother locking him up in the dungeons in his castle (Men can get other man pregnant). He kept Dream locked up in dungeons. Then one day he went in the dungeons to visit Dream, claim him as his, and get him pregnant. He opens the door of the cell, walks in, and sees Dream who is chained to a wall, walks up to him, crouches down to his level and caressing his cheek