Susan's trembling must have done something, as Cass quickly lost his controlled reserve as his thrusts became faster and more erratic.
She felt him shuddering and with one final thrust, she knew he'd come. For some reason, the knowledge that she had made him feel that way, had been the cause of him letting go like that - it was different.
A whole new world of revelations opened up to her as he kissed his way back to her mouth. But she had other times to think about that, for right now all she wanted was to kiss him again, and thank him for removing the demons of her past.
She could feel his heart beat slowly returning to normal as her own was calming down. She pulled away from the kiss, her fingers brushing away a stray curl. "I'm so very glad it was you," she said, trying not to sound emotional or sappy, but not doing a very good job, as a lump was forming in her throat and she had to kiss him again to cover up whatever it was she was feeling.