A/N: So I'm taking a rather overused idea (that I think is really quite cool) and hopefully making it more original. There are probably more then twenty fics out there with this same idea, but I think that I can make it more interesting and better written than at least half of them.

This story will have Remus paired with a Male OC, but it is a temporary pairing. Yes, once again it's the whole "make-Sirius-jealous" thing, but the other reason I pair him with someone else is that I don't think Remus fell in love with Sirius and never met anyone else (other than Tonks in the book, but she doesn't count).

This will be quite a few chapters long, probably seven or so, but I'll let you know once I've written the last one exactly how many it will be. It will definitely be over 30,000 words, and probably over 50,000. Just a warning for you.

It is M rated, starting from the second chapter. It will contain gay relationships and will describe, in detail, gay sex. If this offends you, please go no further.

I make no profit from this fanfiction, and am writing it purely for my own enjoyment. All characters, places, words like "muggle" etc belong to JKR and Warner Brothers (who ruined the storyline in the movies, btw).

Please R&R

Beta: ChronicxInsanity

Chameleon Changes Chapter 1

Complications and Catastrophes

"Don't you think you should at least wait another couple of days? Memorise the spells some more? Do some more research?" Remus pleaded, ever the voice of reason for all three of his friends. "Something could go horribly wrong."

James and Sirius shared a glance, and Peter rolled his eyes at the werewolf's worrying. "We'll be fine, Remus. We've flown through the rest of it, haven't we? This is supposed to take seven years, and after this, and our first transformation, it will only have taken us five. We can do this."

Since their second year, the three boys had been working on becoming animagi, with much help from their clever, albeit reluctant, werewolf pal. It was an extremely difficult magical transformation, something that most adult witches and wizards - even well-accomplished ones - never managed to achieve. But now, in their sixth year, the boys were finally beginning to see the fruits of their labours.

"Besides, Moony, aren't you looking forward to having us with you at the next full moon?" Sirius's voice was child-like, as though he was seeking reassurance. If that was what he was looking for, however, he would have to find it somewhere else.

"Yes, I can't wait for the opportunity to rip my three best friends to pieces," Remus said coldly. "It's been my lifelong ambition."

"Don't be like that," James scolded wearily, as though he had heard this argument many times before. "You won't hurt us. We're too big for you take on."

Remus didn't say anything. James would find out the hard way just how wrong he was. The werewolf just hoped that it wouldn't cost him too much.

"As if you could take him on, Prongs," Sirius scoffed, using James's recently-discovered nickname. "You're a grass-eater. If anyone'll take Moony on, it'll be me. I'm the Grim!"

"You're not the Grim, Padfoot," Peter said wisely. "You're a dog. The Grim is something else entirely."

Sirius, showing wisdom and maturity beyond what Remus had thought he possessed, stuck out his tongue.

The four boys sat in a circle in a dimly-lit space - the secret passageway behind a mirror in Hogwarts. In the middle of them was a triangle James had carved into the floor with magic. It was an odd looking triangle due to the many lines and words written in Latin that ran through its centre. "I still don't think-" Remus began, but James cut him off.

"Look, Moony, we've said it before and we'll say it again. We're going to do this, with or without you. It's not an issue to us whether you give consent. And wouldn't you rather be able to supervise us and keep us from doing something stupid?"

"This entire thing is stupid!" Remus exclaimed. "Stupid and ridiculous and extremely dangerous!" I don't think any of you realise just what you're getting yourselves into."

Sirius rolled his eyes. "It should be known, my dear Moony, that we aren't above placing a silencing charm on you…."

Sulkily, Remus took the hint and shut up. James licked his lips, slightly nervously, before continuing. "Okay, so we all know how this works. Sirius is going first. When he gets into the triangle he has to say the enchantment exactly. Before you go in, Sirius, repeat it one last time."

Sirius nodded, and reeled off a long string of Latin at a pace that even someone who was fluent in the language would struggle to keep up with. Remus listened attentively and, when Sirius finished and looked at the werewolf for approval, he nodded. "That's right," Remus said begrudgingly. "But you can't go as fast as that during the actual thing."

Sirius nodded gravely, jokes cast aside in the sobriety of the event. Nervously, he heaved himself up from his cross-legged position and made his way forwards into the middle of the triangle. James, Peter, and Remus all clustered back further down the large passageway.

"Obvium Narvate," Sirius whispered, pointing at each of the corners of the triangle with his wand in quick succession.

The symbol started glowing, and the onlookers had to shield their eyes because of the brightness. Remus turned around, dashing further down the tunnel, and returned with heavy-looking book.

"Do you really need that?" James asked Sirius began chanting the incantation in a strong voice. Remus shook his head.

"No, I know it off by heart. But I thought I'd better have it for reference."

Peter and James shared a look that clearly said things like "worrywart" and "insane werewolf". Remus didn't notice, being too occupied flicking his eyes from the diagrams in the book to the real thing happening before his eyes.

Sirius finished chanting now, and the light from the triangle began to turn orange. James continued watching, oblivious to anything being wrong, but Peter frowned.

"Remus? Isn't it supposed to turn blue?"

Within seconds the werewolf had his wand out and was charging toward the triangle. "Moony! NO!" James cried out, starting forwards as he meant to go after the werewolf, but Peter managed to grab his arm.

"Just wait, James. You can't help now, only Remus can." James hesitated, but finally nodded.

"Finite incantatem!" Remus cried. "Cancelleous Trigram! Finite! FINITE!" He had reached the triangle now, and the light was still shining brightly. His spells hadn't worked. He had a split second to decide what he was going to do. He barely hesitated.

He dashed through the wall of light, blinded by its brightness. His hands reached out in an attempt to find Sirius, and after a few seconds he managed to grasp the boy's arm. He was about to pull him out of harm's way when the triangle exploded with light and the two of them were thrown backwards with the force of the explosion.

James and Peter had to shield their eyes again, but they heard the boys' yells. As soon as the light had disappeared, they rushed forward. They weren't thinking about their safety, acting very much like the courageous but foolish Gryffindors that they were, but it seemed the magic had died when Sirius and Remus were thrown out of the triangle.

"Sirius! Remus!" James exclaimed, running to the boy's sides. "Are you both okay?"

He reached Sirius first, and the boy looked up at him dazedly. "I think I'm alright," he said. James was so relieved he didn't even notices the difference in the way the boy spoke.

"What about you, Remus?" James asked, moving to the other boy's side.

"Remus" raised his head. "Who are you calling Remus, Prongsie? I'm Sirius, remember?" This time the difference in the voice was unmistakeable - Sirius had a lilt in his voice, probably the result of his pure-blood upbringing, that did not suit Remus at all.

"Sirius?" James asked. The boy who looked like Remus grinned.

"That's me. Sorry to disappoint. I never knew you were so keen on Remus - I'll be sure to let Evans know that she has competition."

"Oh Merlin," the boy who looked like Sirius breathed. "These most definitely aren't my hands. And Sirius, you don't look like Sirius. You look like me."

"So you're Remus?" James asked Sirius's body. Remus-who-looked-like-Sirius nodded.

"We must have switched bodies," he said thoughtfully. "The transformation magic had nowhere to go when the spell didn't work, so it transformed us into each other. I don't know why it didn't work, although I'm thinking it must have been the triangle because I'm almost certain that Sirius said the incantation correctly."

"Wicked!" Sirius-who-looked-like-Remus said, examining his hands. "I get to live a day in the life of Moony!"

Remus's eyes flashed. "No Sirius, it is most definitely not wicked! Do you have any idea what this means?"

"You're actually going to get girls now that you have a hot body?" Sirius said. Remus glared even harder. "Not that you don't have a hot body," Sirius quickly amended. "I mean, I'm not saying you do, because that would mean I was looking and I haven't been, and-"

Remus cut him off. "Forget about that, Sirius. This won't just last a day. We're stuck like this until we find a way to change ourselves back."

Sirius shrugged. "That's not too bad, as long as we do find a way. How long do you think it should take? Because I don't want to be stuck looking like this for ages, you know…"

"I don't know." Remus put his head in his hands. "But I don't think we'll find it soon enough."

Sirius, and James and Peter, looked confused at the werewolf's misery. "Soon enough for what?" James asked.

Remus raised his head. "How can you guys forget? The next full moon is in two weeks. If we don't reverse this before then, Sirius will be transforming into a werewolf."

Two a.m. saw the four of them grouped around a small table in the Restricted Section, each of them pouring over individual books that were thicker than they were tall. Every so often, one of them would get up and tiptoe over to the shelves to exchange their book.

"Not in here," James sighed, quietly shutting a particularly thick one. "Remus, why did you tell me to look at potions books?"

"Hm? Oh, because I think that the cure might be a lot more difficult than a simple spell. If it is one, it's most likely to be a complicated incantation or something like the triangle enchantment that got us into this mess. But I was thinking that there might be a general potion that could work to counteract the effects of the casting-triangle."

The words seemed strange coming from Sirius's mouth. It wasn't that he wasn't smart, but Sirius was the type of person that never really showed his intelligence until it came to tests, which he managed to ace with zero study (to the infuriation of a certain werewolf, who spent half his life studying). To hear him give detailed explanations like that was really the strangest thing of all. James shuddered to imagine what it would be like the next time Remus, in Sirius's body, tried to have a complex debate with a Ravenclaw over the merits of the Farvelle theory versus the Green theory, or whatever it was.

The poor student might die of shock.

James went to get up, glancing down at his watch as he did so. "Remus!" He exclaimed in a loud whisper. "It's two o'clock! Don't you think we should be in bed?"

"You lot are the ones who refused to go to McGonagall," Remus reminded him. "We have a week to find a cure; otherwise, I'm going to the teachers. And that's assuming that it's a spell we can master or a potion we can make in the remaining week before the full moon."

James shrugged. They had already discussed this. He and Sirius were both confident that they could find something before then. At least, he hoped so, for Sirius's sake.

"We still need sleep though," Peter said logically. "You'll need to be awake for tomorrow. You have to pretend to be each other."

Neither he nor James could hide their grins at the thought. Remus and Sirius, however, did not seem to find it so amusing. Remus especially.

"Don't make it difficult for us," he warned them. "If anyone finds out what we were trying to do, all four of us will be expelled."

"What? You won't be expelled, Remus," Peter said.

James nodded. "Yeah, if we get caught, we wouldn't mention you. We'd just say we were doing it because we have big heads and you stopped us from getting ourselves killed. They don't need to know you were involved."

Remus suddenly found it hard to speak. They'd do that for him?

He cleared his throat. "Well, let's not make it necessary. We need to find a cure, or, failing that, an excuse for why we were doing what we were doing."

James nodded. "Yes, sir! But right now, we should be heading off to bed."

There were two noises of assent from Sirius and Peter, and Remus finally nodded his agreement.

"Oh, by the way Remus," Sirius said lightly as they made their way out of the library. "I - well, actually, you - are currently dating a sixth-year Hufflepuff named Gretel Ailson. You can dump her if you like." Sirius's voice was careless and full of humour.

"Gee, thanks," Remus said sarcastically. "How generous of you."

"I don't suppose I can pick you up a bird while I'm in this body, can I?" Sirius asked.

"Absolutely not," Remus replied instantly.

Remus sat with his back against the cool stone wall. Above him, the window let in the cold even further, and he shivered slightly in the chill. His thoughts turned over and over in his head.

He didn't think he could do this. He couldn't pretend to be Sirius, even just for a day, and he knew it would be a lot longer than that. He couldn't swagger into a classroom radiating confidence. He couldn't cheekily call out to teachers in the middle of class, or call Professor McGonagall "Minnie", even just behind her back, let alone to her face, like Sirius did.

He couldn't be the energetic ball of fun that Sirius was. He was Remus Lupin, the boy that faded into the shadows and had once been mistaken for a part of the wall in Defence Against the Dark Arts (admittedly the professor in there was slightly dotty, but still!).

And then there was the full moon. He felt horrible for admitting it, but it was so wonderful to not have to fear the pain of the transformation, to not have to spend all his days counting down to the time where he would have to go through it once more. Or, at least it would have been.

It would have been if Sirius didn't have to endure it in his place. How could he look Sirius in the eye afterwards, knowing that he had made his friend go through that? Sirius would hate him for the agony he had experienced. Remus knew that if he couldn't switch their bodies back soon, he would lose Sirius as one of his best friends forever.

So wrapped up was Remus in his thoughts that he didn't notice that he wasn't the only one that couldn't sleep. It wasn't until Sirius slid down the wall so that he was in a sitting position beside him that Remus realised he wasn't the only one who had a lot on his mind.

"Hey," Sirius said softly.

"Can't sleep?" Remus asked. Sirius shook his head.

"You…you have quite a collection of scars…," Sirius said hesitantly. Remus looked down at his hands - unmarked hands, much unlike the ones of the body Sirius was currently in. He'd been so busy worrying about the full moon that he'd forgotten that his three friends had only ever caught the briefest glimpses of the evidence of his condition.

"I'm sorry they're so ugly," he muttered, still not looking at Sirius - who looked exactly like himself. He was only just managing to get used to the eeriness.

He was surprised when a hand entered his vision as Sirius gently grabbed his wrist.

"Hey, don't talk like that," Sirius chided. "They're not…they're not ugly. I don't think they make you ugly. I was just saying because they look painful. I never realised how many you have before."

"I try not to show you guys…," Remus said. He realised Sirius's hand was still resting on his arm.

"You shouldn't hide them, Remus," Sirius told him. His voice was intense - Remus had never heard it like that before. "They're a part of you, and we don't want you to be anyone but you."

They were quiet for a moment, and then Sirius' voice lightened. "Now get some sleep," he told the werewolf, pushing himself up from the cramped position, his voice taking on a lighter tone. "You have to rise bright and early tomorrow so you can dump my girlfriend."

Remus, for what felt like the fiftieth time today, tripped on a stair and went sprawling across the floor, the books he was carrying flying everywhere. He groaned, partly in pain, and partly at the fact that picking them all up was going to be a major nuisance.

It wasn't that Padfoot was uncoordinated - in fact, he was probably more coordinated than Remus himself. But Padfoot was taller, with longer legs and arms, and it was taking Remus an annoyingly long time to get accustomed to the difference.

"Are you okay?" the concerned voice came from somewhere above the werewolf's head. Remus couldn't see who it was as his face was still firmly planted in the hard stone floor. With another small groan of complaint, he looked up.

It was a boy in his year - from Ravenclaw, Remus thought. What was his name? Millagan? Mercroft? It was something starting with 'm'.

"Yeah, I'm fine thanks," Remus said, picking himself up slowly. "I'm not the most coordinated today."

"You're Black, right? Sirius Black?" The boy began to pick up Remus's scattered books.

It took Remus a while to remember that he wasn't in his own body, and that anyone who wasn't a Marauder wouldn't know that he was actually Remus. "Yeah," he said. "Sorry, I seem to have forgotten your name…"

"Bradley Faire." Okay, maybe not 'M'. "I'm in your Transfiguration and Charms classes."

"Oh, I remember you now," Remus lied. Bradley handed him a large pile of books.

"You have some interesting reading there," he said, nodding to a book titled 'Body Switching and How to Reverse It.' "Awfully specific."

Remus blushed. "Yeah, I thought it looked interesting…."

Bradley grinned. "Right…."

His grin was infectious and Remus couldn't help smiling back. They began to walk down the corridor together, and soon they were chatting away like old friends, about inconsequential stuff like the next Hogsmeade trip and how Professor Kettleburn had just lost his arm in a dispute with a hippogriff. When they parted for their respective common rooms, Remus marvelled at how easy he had been to talk to.

He only wished that the boy didn't think he was Sirius.

"Stop frowning, Padfoot. You're scaring my Lily-kins away."

Sirius grunted.

"Stop glaring at me, Pads. You'll scare me away too."

Sirius grunted again.

"And then," James pronounced dramatically, not in the least put off by his friend's lack of response, "you'll have no friends on top of not having all the girls hanging off your every word any more."

Silence.

"Is that's what's bothering you? You're annoyed because Remus won't let you have a girlfriend?"

"No."

"Then what is it? Because seriously, Padfoot, you glaring in Moony's body is even scarier than when you glare in your own."

"I'm not glaring, James. I'm thinking."

"You are? Well, always a first time, I guess…. But Remus' face doesn't look so… strained, when he's thinking."

Sirius ignored the insult. "James…" he said tentatively. "What if…what if we don't find a way to reverse it before then next full moon?"

"What do you mean?" James asked sharply. "I'm sure we won't get expelled, if that's what you mean. I reckon if we go to Madam Pomfrey and tell her we were duelling or something she won't ask too many questions."

"No, that's not what I mean." Sirius seemed to struggle with words for a moment, before he asked hesitantly, "what if I'm still in Remus's body for the next full moon?"

"Oh," James said. He wasn't really sure what to say to that, mainly because he had no answers. "Are you scared?"

"What? No, that's not what I meant." Sirius frowned at James. "I meant…what if I just stay in Remus's body for a while? Then he wouldn't have to transform, and it would be as good as a cure. It would be even better than us becoming animagus."

"Are you mad?" James hissed. He would have shouted, but the common room was unusually full for a Sunday morning, and this was one conversation that James would rather not draw everyone's attention to. "You've seen Remus after his transformation! He looks like he's been to hell and back! He explained to us what happens when he transforms, Sirius - his muscles tear themselves to pieces and then knit back together! It's like taking a hundred times the correct dosage of skelegrow!"

Sirius looked as though he was about to interject, but James continued. "And what about the rest of the transformation? You will literally tear yourself to pieces in your desperation for human flesh! Do you really want to go through that?"

Sirius's eyes flashed dangerously. "That's what Remus goes through every month. Don't you think it would be worth it if he didn't have to, even just the once?"

James looked like he was going to retort violently, but he seemed to think about what Sirius said and sunk back into his chair. "You would take on Remus's suffering so he didn't have to endure it?" He asked in a low voice.

"Yes," Sirius said, without hesitation.

James paused. "Remus will never agree," he told Sirius finally. The boy shrugged.

"It's worth a try, isn't it?" he asked.

"Well he's over there if you want to give it a go," James said sceptically, nodding towards a corner in which Remus was huddled, blocked off from the common room by a wall of books higher than he was. Sirius nodded, and steeled his shoulders.

"Wish me luck, Prongs," he grinned at James, who just smiled in return.

As Sirius made his way over to the researching werewolf, James's eyes remained fixed on him, an extremely pensive look on his face.

He didn't look away until Sirius effectively hid himself from view by sitting behind the piles of books.

"No."

"But Moooooooony…."

"Absolutely not."

"But-"

"I said no, Sirius."

Sirius pouted, although the look was wasted - Remus didn't even glance up from the thick textbook he was skimming through. He slumped back down into the seat glumly.

"Why not?" He asked.

"Because." Remus stated simply, jotting down a page reference on a sheet of parchment he had at hand.

"Because whyyyyy?" Sirius asked, drawing out the 'why' like a child whining for sweets.

"Padfoot," Remus said seriously, finally taking the time to look up from his research. "My condition is not something I would wish upon my worst enemy. Why would I willingly allow it to be inflicted upon one of my best friends?"

"Because you wouldn't have to endure it."

The reply came out so smoothly and quickly that Remus wondered if Sirius hadn't practiced it. A quick glance at the dark-haired boy told Remus that his eyes were fixed intensely on the werewolves face.

"It's not worth it," Remus muttered.

"How do you mean? Sirius asked.

"I wouldn't have to go through it, but you would. It's not worth it."

"The way I see it," Sirius argued back, "it's extremely worth it. Remus, you have to go through the transformation every month. Wouldn't it be good to be free of that, even just the once?"

"And let you do it instead? I don't think so."

"Why not?" Sirius's voice was loud and demanding, and Remus looked anxiously around, afraid that it would draw the attention of other students. He needn't have worried. Even if they could be heard over the muffling wall of books, the mufflato charm that Sirius had cast prior to the beginning of the conversation seemed to be effective.

"How could I look at you the same afterwards, Sirius, knowing you had been through that and it was all my fault?" Remus's words were rushed, and his voice bitter. Sirius tired to interject, but Remus continued talking. "How could you look at me again? Every time you'd remember what you went through, you'd think of me and know that if you didn't know me, if you weren't friends with me, it never would have happened. You'll hate me for it."

"Remus…," Sirius whispered. The werewolf looked away, as though ashamed of his outburst.

"I'd never hate you, Remus. Never."

Remus let out a low barking laugh, something that suited Sirius's body but not the person in it. "You say that now, but afterwards…you'll think differently."

Without warning, Remus stood up. "Where are you going?" Sirius asked in surprise.

"Back to the corridor behind the mirror to look at the triangle," Remus said grimly. "None of these books are any help and it might be easier to reverse this if we know what we did wrong."

"I'll come with you," Sirius said hastily, standing up.

"No, I'll go on my own. If you want to be helpful you can take these books back up to the dorm. We can return them tonight."

And then Sirius was left there, surrounded by a pile of books he couldn't even pronounce the titles of.

"I wonder if Remus would let me get away with just vanishing them," he wondered.

It was dinner before Remus reappeared again. James could have whooped in relief - Sirius had been moody since he had recounted his conversation with the werewolf. Now they could sort things out and Padfoot (disguised as Moony) could stop glaring ferociously enough to scare away Lily. Because, of course, she would be all over James if it weren't for him.

But James did not whoop. He barely even managed to crack a relieved smile as Remus dropped two heavy, thick, complex-lookingbooks on the table. This was a bad sign, because usually when Remus did that it meant they had to actually do work. Peter seemed to be of the same mindset, because he looked at the heavy tomes like they had just mauled his cat and were now watching him predatorily as though they were about to do the same to him.

"I found it. It took me three bloody hours, but I found our mistake."

"Oh?" James said, more to be polite than because he actually wanted to know. "And what exactly did we do wrong?"

"The written part of the triangle. In Latin. Along one edge of the triangle. Someone wrote a wrong letter."

"A wrong letter? That's all?" James asked

Remus nodded gravely. "Yep. I keep trying to tell you guys, this is dangerous, advanced magic. We're lucky we only switched bodies - wizards have died trying to become animagi."

He knew that the other Marauders took what they were trying to do far too lightly. Even Peter, who usually seemed much more aware of the consequences than Sirius and James, didn't really grasp how dangerous it was. The rat-like boy knew it was difficult - it was a lot more effort for him than it was for the other two - but he thought that was all there was to it.

"Does it help at all? Knowing what went wrong, I mean?" James asked. Remus shrugged.

"Not yet. But it could. I've searched this book for ways to fix spells that went awry," he gestured to the main book that they used for researching how to become an animagi. "But it hasn't been much good."

Sirius seemed about to say something, but at that moment Lily came striding over. James' face lit up as though Christmas had come early, but she ignored him.

"Remus," she said, addressing Sirius. Sirius looked surprised, and raised his eyebrow in a very Sirius-like way. Peter kicked it in the shin, and comprehension dawned on him.

"Oh, right, hi Eva- I mean, Lily," he said. Lily gave him a funny look.

"Can I borrow your transfiguration essay? I only just finished mine and I'm not sure that I defined the second law of elemental transfiguration correctly. I was hoping to cross-reference with yours."

"You could," Sirius said, "but I haven't done it." He winced as Peter kicked him in the shins again.

"Yes you have, Remus," the real Remus interjected. "You were doing it the other night, remember?" The 'remember' was highly emphasised, and came with a glare that told Sirius to play along or else.

"Oh yeah, right, I remember now. Sure you can borrow it. I'll give it to you when we get back to the common room."

Lily gave him a relieved look. "Thanks, Remus."

As soon as she'd walked away, James turned to Sirius. "I want to trade bodies with you. I want to be Remus."

"What?" Sirius said, confused. "Why?"

"Did you see?" James's eyes shone with excitement. "Lily actually talks to him!"

Back up in their dormitory, Remus suspiciously handed his completed essay over to Sirius.

"Remember, you have to act like me," he told the grinning boy sternly.

"Yes sir."

"That means not calling her Evans."

"Yes sir."

"And no waggling your eyebrows suggestively."

"What? Like this?"

"Yes, like that."

"Alright."

"And no slouching."

"Gotcha."

"No calling her 'love', or 'honey', or any other "affectionate" nickname."

"Right."

"And if she brings up Professor McGonagall, you call her 'Professor McGonagall'. Not Minnie, or McGoogles, or even just McGonagall. Professor McGonagall."

"Okay."

"Say it with me: Professor McGongall."

"Professor McGonagall. Really Remus, just let me go down and give her the damn essay. I think I can act enough like you to fool Evans."

"No, Sirius, not Evans. Lily. I call her Lily."

"Oh for Merlin's sake, James, please hex him for me before I do," Sirius appealed to his amused friend. James just shook his head.

"I think not. But just let him go down, Moony. He'll do fine."

"Alright. But come straight back up! Do not engage in extended conversation with her!"

"Okay, Moony. Chill," Sirius said as he began walking out the door.

"Oh, and Padfoot," James called out to his retreating back. "No asking Lily out!"

Remus whirled to face him. "Why would he do that?" he demanded.

"Well, think about it," James said logically. "Other than me, of course, the only person Lily would consent to go out with is you. She would never say yes to the real Sirius, but if she thought he was you… hey, where are you going?"

Remus was already halfway out the door by the time he answered. "To supervise!"