Aaron's hand curled around his scalp and Lucifer moved when he pulled him in, smiling when he felt Aaron's lips on his own. There were really few the times Aaron had initiated their kissing, all of them have always had a meaning behind. He felt gratitude in the gesture, but also the love behind too, a sentiment so pure and wonderful. And it was directed solely to him. Lucifer couldn't help but crave for more when Aaron's soul reached for him, to deepen their kiss and bathe himself in Aaron's soul, wrapping it within him. He reached with his grace to brush it, leaving some pieces of him there and Aaron's soul lit even brighter.
Aaron was almost sitting on his lap by then, legs spread at his sides as he kept pulling him closer.
Lucifer wanted to grab him tightly, to keep kissing him until Aaron forgot where he was. Marking him for all to see. Making him His.