"I won't," Severus breathed hoarsely, tucking Harry's head under his chin, the most intimate contact he could allow himself without getting carried away. It was gentle ... reassuring. Maybe they did not need love; trust could be enough. After all, how many couples suffered in their relationships because they kept secrets? Severus was an open book because of the mark. Harry had just proven that he would not keep secrets about the status of their relationship. It was enough.