Michael Grant said this quote

Sam was stiff and tired. He crept onto the houseboat, careful not to wake anyone, and sidled down the narrow passage to his bunk. The shades were drawn and of course there were no lights, so he felt his way to the edge of his bed and crawled across it on hands and knees to find his pillow.He collapsed on his back.But even at the edge of sleep he was aware of something different about the bed.Then he felt soft breath on his cheek.He turned and her lips were on his. Not gentle. Not soft. She kissed him hard, and it was like he’d been awakened by an electric power line.She kissed him and slid on top of him.Their bodies did the rest.At some point in the hours that followed he said, “Astrid?”“Don’t you think you should have made sure of that about three times ago?” Astrid said in her familiar, slightly condescending tone.They said many things to each other after that, but nothing that involved words.