A/N: this takes place after Light gets his memories back, and L unchains them.
"L, I think that your cake supply is going to run out soon. Do you want to go and get some more while I am not working on something important?" Light Yagami stood and gently pulled on L's arm. Even after they had been unchained, L still insisted that they did everything together, including making Light still come to get food with him. At least actions such as using the bathroom and showering were now made easy without the other's company; L was kind enough to let Light have his privacy now.
L slowly stood up, keeping his eyes glued to the table where his dwindling piles of sugar were. It was true, there was barely enough cake for the next hour, let alone the rest of the night. Better to get some more now than later, when they might have a lead.
Nodding, L stood up and slowly padded to the door behind Light. "Well, I do not think there is anything any of you can do for the rest of tonight. You are free to go; remember to be back here tomorrow at eight." The task force nodded as one and trickled out the side door, the one that led to the elevators. Sochiro was the last to leave; before he closed the door he shot L a meaningful glance, one that clearly said "Don't over work my son or you will have hell to pay."
Great, L, now I have you right where I want you. I'll have you before you even know what has happened! Light tapped his foot impatiently to show L that he wasn't going to be kept waiting all night, and started towards the kitchen to help L carry his cake back to the workroom. L usually brought so much cake back to the room that he had to have Watari help him carry it all, but Watari was out buying L more cake and sugary sweets. There was nobody in the building who could help L now. Perfect.
While walking behind Light, L noticed Light's hands clench into fists and wondered why. Maybe Light-kun doesn't like going with me to get cake? But he offered to do it. Hmm… I wonder what could have caused him to become so emotional. L stopped his musings when he noticed that Light had halted and was looking at him in a way that suggested some very dark inner thoughts.
"…Light-kun, I would appreciate it if you were not to stare at me like that. It makes me feel like you are planning something that-" Light slammed L into the wall, and held him there, despite L's struggles. "Light-kun! This raises your Kira percentages to-"
"Shut up L. I thought you were done with me being Kira. You wanna know something? I am Kira. I was Kira all along, and you knew, but you still couldn't find anything on me. I beat you. And now, if you tell anyone, then I will kill everyone on the task force. Including you. I had Rem tell me your name. Lawliet. L Lawliet. Nice name, but it will only help me defeat you."
L started thinking, and he came to realize something. "Light, I hope you realize that there are cameras recording your every move. If I die tonight, then there is enough proof to convict you of being Kira."
Light only smirked. "You think I didn't think of that? I'm insulted, L. You of all people should know that I am smarter than that. I turned off all the cameras before I got up. Tomorrow you can tell Watari that they misfunctioned and nothing of interest happened tonight." L began to shake his head, but Light slammed him against the wall again.
"If you really want to make this difficult, then I think that I might have to start killing people. How about I start with Matsuda first? He's always annoyed me." L's eyes widened. "Are you going to behave, or do I have to show you what I can do?" L shook his head, and Light slowly let him down onto the floor. "Good. Now call Watari and tell him that you need him to do something that will make him unable to come back here until tomorrow." L only nodded and pulled out his phone.
"Watari, it is me. I require you to fly to England and get me cake from Wammy's bakery. Yes, I know it is excessive, but I really must have some, it makes my mind work better and we might have a break in the case soon." As soon as he was off the phone he glared at Light. "You will be captured and killed, Kira. Everyone will know if I die tonight that it was you that killed me, as you were the only one here." He made to stalk away in a huff, but Light caught his arm and pulled him back.
"Oh, I won't kill you tonight, L, but you have to behave. You must do everything I say, or believe me, everyone you know will die before your eyes… and then I will kill you myself." Light smirked, and then dragged L to the kitchen. "If I were you, L, then I would get my sugar fix now. You have five minutes, then no more sugar for the night. I can not stand watching you ingest so many calories. You must eat normally during the day, though, because we don't want anyone getting suspicious, do we?"
L couldn't believe it. First he finds out that his best friend is the person who he has been trying to capture, but then he is told that he is not allowed to have any sugar for the rest of the night. It was too much for his brain to handle, and he feinted.
When L came to, he was in the bedroom that he and Light had shared for so many months while they were chained together. He looked around, and realized that he was in fact chained to the bed. Light was sitting next to him, obviously gloating over his position. "So, L, I figured that you didn't want sugar, and I took the liberty of carrying you here so we could have some fun." At the last few words, Light's smile of superiority grew.
"What are you going to do to me, Light? I would rather like to know, so I can prepare myself mentally." His tone was condescending, but there was real fear in his eyes.
"Oh, but that would ruin the fun. I want you to be able to deal with not having control. Just let me tell you what to do and you might make it out of tonight with some dignity left. Now first, take off your clothes." He paused to smirk, allowing his words to sink in. "When you are finished, you can put this on." He threw a hanger on the bed, with some kind of dress on it, all covered in black lace.
For a moment all L could do was stare at the thing. It was hideous, all frills and bows and lace… but then Light's words sunk in. "Take off all my clothes… and put on this….?" L's mind was weak and confused from lack of sugar and he found himself momentarily at a loss for words.
Light smirked at the pale man's hesitancy and decided to help him out. "Yes, you strip and then don this beautiful, lacy French maid's dress." As L continued to gape at the outfit, Light felt the need to add mockingly, "It's Misa's. I thought the black frills would complement the awful circles under your eyes…" After about two more minutes of gaping, Light became impatient. Is he just going to sit there looking like a goldfish? Light snapped rather forcefully, "So, don't you like it?"
Some inner instinct told L that to upset Light, no, not Light now, Kira… would be very dangerous, so he responded weakly, "Yes, I like it very much... Kira" The name was half whispered, half hatred, half fear.
Light picked up on the fear and smiled sardonically. "Good. Since you're going to be wearing it either way, I guess it's a good thing that you like it. And when you must say my name, you have to refer to me as Kira-sama. "
L looked up into the face of the villain he hated, trying anxiously to see in it the face of his friend... But the Light he knew was gone, replaced by this sneering, cold, evil monster that looked at down him with pure hatred in its eyes. It smirked at him, and L knew that Light had never been his friend… That the monster had been there for God knows how long, always just beneath the surface, always hating him, always sneering...
Another smirk, and then: "Go on, L. Put it on"
A command, one that L couldn't possibly ignore without Light getting angry. He stretched out a pale arm and picked up the frilly dress by the straps. He placed it down next to him as a last, desperate thought of escape occurred to him. "Light, I cannot undress while chained to the bedpost."
Light's face changed from gloatingly amused to angry in an instant. "Then hang the shirt on the bedpost. Rip the shirt. I don't care. Just put on the damn dress."
Not that L had actually expected Light to fall for it, but he was still disappointed as his last hope of escape was squashed. "Hope is the last to die…" The quote flashed unbidden through L's mind, and despite hearing it many times, this was the first time L truly understood it.
L tugged at the shirt, but it really would be impossible to get it off with both hands chained to the bedpost behind him. Light seemed to realize that, and came around to the bed slowly.
"Now you have to promise that you won't try anything, or else….." he let the rest of the sentence unfinished, but they both knew what would happen. Light slowly took the key to the handcuffs from his pocket, and undid L's left hand, attatching the unused handcuff to the bed. L rubbed his wrist with his other hand, but Light glared at him.
"Oh right. I'll do it, keep your pants on." L knew that that was the wrong response when Light just smiled at him. He tugged his shirt off, and left it hanging on the chain behind him. Grabbing the dress, he made to put it on, but Light stopped him.
"Naked first, then dress." L tried not to show his dismay, but it unnerved him to be naked in front of Light, when Light had the power to end L's life right then and there if he wanted to.
Slowly, L unbuttoned and unzipped his jeans, and pulled them down. Only his boxers were left, and he quickly pulled them off and has the dress covering his private areas in seconds. Now all that was left was to get into the damn thing. He pulled one arm into it, and gestured to Light that he had to rechain that arm, and unchain the other one for it to work. Light grabbed the manacles and had L fixed up in no time.
As he pulled the dress over his head, L realized that since he was as skinny as Misa was, fitting into the dress wouldn't be a problem, but he was taller than her by far, so a dress that would be revealing on her would give him no modesty whatsoever, especially if he was not allowed to wear boxers.
Light seemed to have realized this before, and threw L a pair of what looked like frilly girly panties. Strike that, they were frilly girly panties. At least they would be able to hide something in them, and give him a feeling of something resembling dignity, if he didn't look down.
When he was done giving up whatever manhood he possessed, L looked at Light, asking what to do with his expression of fake boredom. In truth he was scared for his life and the lives of others, but it would do no good to show that to the mass murderer standing before him.
"If I unchain you, will you promise not to run away?" L only nodded in wonder that he might actually try to run from Kira. "Okay, I'll unchain you. But you have to be on your best behavior or I'll punish you." Lights eyes grew wistful at this, as if he was imagining the possibilities. L decided that it would be better to not get on the false Gods side any more than he already had.
While he was thinking, Light was unlocking the cuffs from L's wrist, and running his hands over L's dress. The lacy ruffles were softer than they appeared, and he had to wonder at the texture. Misa would have to get him some more of these for L to wear. L had finally stopped thinking to notice what was happening, but he stayed still, wary of angering Light for no reason. It's not like anything was actually happening, so there was no harm, right?
Wrong. Light's hands drifted lower, and one of them accidently brushed against L's inner thigh. He shivered, intimate contact being something he was never really good at. Light seemed to realize what he was doing and jerked back, eyes wide with shock.