Dominique would attribute the intensity to her part-veela side, of course. She wasn't sure quite the exact portion of interest in any person that did not directly relate to the veela in her, but right now she wasn't thinking about that at all. She was thinking about how perfect this was and how things seemed to be leading up to this moment.
She managed to slide her hand underneath Sirius' costume and run it up and down his chest as she continued to kiss him back, hardly wanting to come up for air.