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“Oh fuck, Lucifer!” Your cries of pleasure and the clenching of your walls as you came sent Lucifer over his own edge. Feeling his arms beginning to give out, he pulled out and landed on the bed next to you. Lucifer took deep breaths, eyes closed as he waited for you to eventually get up and leave his side to return to your own room. For centuries that’s how all of his sexual encounters had been; sex, then an empty bed the rest of the night.
He had never minded before, at least, that was what he always told himself, but he couldn't lie to himself when it came to you. Seeing you walk out of his room right then would hurt him more than anything else. When the bed shifted from your movement, he turned on his side away from you, not wanting even the temptation to torture himself by watching you go.
Lucifer’s eyes shot open when your warm body pressed along his back, your arm snaking around his waist and leg draping across his hip to pull him closer. You kissed between his shoulder blades humming. “That was amazing Lucifer.” You chuckled against his skin, your body shaking his slightly. "Probably the best sex I've ever had if I'm being honest."
From the outside, it probably looked comical; your much smaller human frame trying to big spoon one of the most powerful demons in existence. But, it didn’t feel that way to Lucifer. No, to Lucifer, your body around his felt like the most encompassing affection he’d ever experienced. Not only did you want to stay with him, but you also wanted to hold him close.
Lucifer felt his eyes mist over as he grabbed your hand from where it rested on his stomach, entwining your fingers. He heard the thickness in his voice when he spoke. “Thank you for staying.”
You snuggled in closer to his back. “Why would I leave?” You said the words like it was unimaginable you'd even think about leaving his side tonight. Like you leaving his side was the most blasphemous thing you could possibly do, even though you'd just fucked a demon. Lucifer let a few tears slip down his cheeks as you held him.
When you felt Lucifer shake slightly as he cried, you leaned up on an elbow to look at him. "Lucifer? Are you okay?"
The moon streaming through the window made you look absolutely ethereal when Lucifer looked up to you. That open look on your face and the concern in your eyes should have had his pride bristling in his chest. It should have made him want to hide all these weak thoughts and feelings away. But the feeling wasn't coming. No, for the first time in a long time, Lucifer wanted to confide in someone; he wanted someone, wanted you, to know what he was feeling even if he thought it shameful to be upset over something so trivial. He looked at you for a moment longer before whispering into the night. "No one's ever stayed."
You leaned down to kiss the tears from his cheeks, finishing with a soft press of your mouth against his. Lucifer's expression when you pulled away gave away just how much he needed your touch, needed your attention. It'd been so long since someone had taken care of him, and his pride got in the way of him ever asking for comfort from another. He looked at you with something akin to wonder when you gazed down at him again. "I'll always stay, Lucifer, unless you ask me not to."
How? How did he get someone as lovely as you to hold him in your embrace? And not only that, but implying you'd be in his bed again to stay the night? Lucifer fully turned onto his back, using the hand not holding one of your own to gently pull your face to his. He tried to pour every feeling and emotion he couldn't quite find the words for yet into the kiss; every "I love you" he didn't have the nerve to say. He knew the emotion he saw on your face when he pulled away; it was the same one he could feel warming his entire body. "I'll always want you to stay."
The smile that bloomed across your face was one he'd remember for the rest of eternity. You settled down onto his chest, your head resting on his pectoral. "Then, I'll always stay."
You drifted off to sleep before Lucifer, your breathing evening out as you snuggled against his side. Looking down at your sleeping face, knowing you couldn't hear him, he finally found the nerve. Lucifer's voice was quiet in the dark of the room, the words foreign in his mouth. "I love you."
One day he'd be able to say them proudly to your smiling face, but until then, a whispered confession as you slept in his bed was enough.