Light Yagami x Reader (Smut/Nsfw)

Light Yagami

If y'all like this I'll do a part two I guess but this is my first time writing on here (': lemme know if I made any mistakes

Light was yours, your boyfriend. You recently realized who he is, not wanting to tell him as he might kill you. Little did Light know, you found it attractive. Making the world better but still standing his ground. It made sense based on how awfully smart he was, not to mention his sense of entitlement. He had been diagnosed with NPD so it wasn't surprising. It all added up when you found a piece of paper in his wallet filled with names, you knew then.
Sometimes just to get him distracted and to get him in his head you would talk shit about his friend. He was a young man with black hair, not too attractive to be honest. Anytime you would compare light to his friend and insult them he would start to get a little excited and flirty. Based on that you assumed that that kid was a leader in the investigation, probably causing trouble too.
Light was very sweet even though he was a narcissist. You knew the stigma behind the word. He was always caring towards you; he just wasn't sure on how to comfort you. He was also very loving but not selfless. Occasionally he'd manipulate you but after pointing out what he did he tries to apologize. He was often calm, you were pretty sure killing people was some sort of coping mechanism to make him feel better about himself. Sometimes if he got a head start he'd get very excited. Before he met you he'd just start laughing. Sort of like yandere-chan lowering her insanity levels. Now he just used his energy on you. Which when he did were some of the best nights of your life.
You wouldn't dare to tell him that you knew he was Kira. You weren't sure if he'd be scared of you spreading info so it wasn't worth the risk. You would occasionally mention Kira making sure to make it seem like you respected them. Just in case he did find out.

Tonight was one of those nights. He came home and occasionally you'd hear him giggle to himself and look to the side smiling. His smile was something you were scared of yet you longed for. The first time you saw his real smile it creeped you out. After realizing what that smile meant was about to come, it was mesmerizing. Thoughts running through your head about what this man was going to do to you tonight. There he was in that mood. He sat down not leaning back or forward, his shoulders raised up and legs spread. His mannerisms showed how proud of himself he was.

" Good day at work I'm assuming?" You said in a slightly condescending tone. He looked at you. Although his face showed little expression his body slightly turned inward obviously confused by how you knew.

"You could say that I guess," he said. He tried to fix his mannerisms to his old position. You knew that meant he was trying to hold back.

"Why don't you have a drink to celebrate?" You said this knowing exactly what you were trying to do to him. He looked at you a bit suspicious for a second. You looked deep into his eyes, he had that light red tint your suspicions were confirmed.

He nodded his head slightly giving you a small taste of his more sane smile. You got up and walked to his kitchen grabbing one of his favorites. He always liked something strong. You added some ice in the glass and poured. You kept the cup tilted to prevent bubbling and added a little bit of dazzle to the drink before bringing it back to him.

"Thank you, is this my regular?" He said in an oddly deep and sultry tone. You tried to keep your composure as you weren't expecting such a tone.

"Well yes, but I added a little bit more to spice it up" you said. He rolled his eyes obviously not trusting your taste. Mentally you imagined slapping him for that silent remark but you kept seated waiting for him to truly get in his head. You decided to pull one of your tricks on him.

"How's that one kid doing?" You said. Watching him closely. His eyes turned a stronger red which frightened you. Along with the color changing they narrowed to look at you, his face almost showing pure disgust.