Disclaimer: I don't own DC or MK.

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Saguru didn't notice anything was wrong until he stepped into his bathroom. The air was heavy, as if the shower had just been running, but Saguru was the first one home for the night. Weird. He privately admitted that it was possible that there were other indicators of disturbance in the house, but after today's case, he had breezed by everything else, a shower being his first priority. Ah, and another odd thing: there was a wet towel draped over the bar for the shower curtain. Saguru blinked. Aren't all our towels light blue? The white towel hanging innocently in front of him proved otherwise.

Uncomfortable, Saguru peeked behind the shower curtain to make sure nothing was going to jump out at him. A silly notion, but the feeling that an intruder had used the bathroom attached to his room was… unsettling. He turned around to check the cabinets under the sink –

And spotted the mirror. It was fogged up, more proof that the room had been recently occupied, but what made him freeze in horror was the familiar image that someone had traced onto the clouded glass: a top-hat-and-monocle-clad head sporting a smile with more teeth than usual. A Kaitou Kid caricature, on his bathroom mirror, which somehow managed to leer at him even without eyes. Suddenly the room wasn't just warm, it was stifling. Saguru felt his face heat up. The evidence suggested that the thief had come into Saguru's bedroom and used his shower. He swallowed, mind wandering into dangerous territory.

Curse that seductive and intellectually fascinating thief. Saguru was supposed to be unflappable, even in the face of the thief's outrageous pranks. He'd been the one in control during their nighttime meeting earlier in the week, even though Kid was the one who'd shown up at his window. That had been planned from his deductions about Kid's behavior, and Kuroba had looked at him strangely at school since that evening. Keeping the thief curious was what he wanted. Saguru craved an acquaintance to sharpen his mind with, needed to trade challenges with someone that could keep up. Kuroba was essentially a likable person when he wasn't being a pest, and yes, Kuroba-Kid was also very physically attractive. Brains and a sense of morality – when he wasn't out stealing expensive rocks, of course – in a pretty package. How could Saguru not be captivated by him?

After checking every conceivable spot for a flexible magician to hide, Saguru stripped and stepped into the shower, face still hot as he realized that Kid had been standing here naked shortly before he'd returned home. As he rubbed shampoo into his hair, Saguru thought about what it would be like when (not if) they were in here at the same time. His fantasies spiraled out of control, ending with someone's legs wrapped around the other's hips and the wonderful acoustics of the shower amplifying the noises they made. Mind, out of the gutter, now. He'd have to turn the water cold if he kept thinking about this.

Saguru wrapped a blue towel around his waist and exited, with no little trepidation, into his bedroom. Sitting against his headboard, ankles crossed delicately, was the Kaitou Kid – minus one monocle. "Good evening, Tantei-san. I've been expecting you," he began, an echo of Saguru's greeting from the last time the phantom had dropped in.

"Good evening," he replied warily, crossing the room to his dresser. "Pleasant night for flying?"

"Yes." Kid played with Saguru's pocket watch.

Saguru threw on a long shirt and contemplated how to get pants on with Kaitou Kid as a spectator. "Is there any particular reason you felt the need to use the facilities of my house?" he inquired lightly.

"I thought it would make you uncomfortable. Payback, you could say, for orchestrating our last encounter by avoiding my heists." His eyes narrowed. "Pranks aside, my detective, heists are serious business."

"So you admit that it was unnerving to have one less opponent than expected?" There was an opening there for Saguru to ask again why the thief went to all the trouble of staging elaborate thefts only to return the targets, but he knew Kid wouldn't answer. He'd deduced that it was something to do with the gunmen in black playing target practice with the magician. Saguru had gotten no further than that, though. He didn't have time to micro-analyze everything he knew of the Kid because he had to handle difficult classes (looking at you, History of Asian Countries) as well as his investigations (that Edogawa's eerie intelligence inspired awe, respect, and mild terror).

"No, I wasn't unnerved, but I wasn't expecting you to quit halfway, Tantei-san. Didn't you cross the world for me?"

"I'm sorry you're currently feeling neglected, but I do plan to go all the way with you." He flushed a little at the double meaning, but that could be attributed to the hot water from the shower. "Go all the way with your case, that is." Kid's eyebrows drifted upwards, suggesting either that he wasn't fooled or he was thinking similarly. Why couldn't we have this conversation once I'm fully dressed?

"Glad to hear it." He swung the pocket watch around on its chain. "You have something of mine, I believe. It was pretty bold to steal from an international thief who would have absolutely no difficulty breaking into your home at any time."

Saguru didn't comment, simply strolling over to his desk and opening the top drawer. He pulled out a small unmarked box and removed from it the handkerchief where he'd wrapped the monocle. Saguru turned around, removing the thief's possession and holding it out.

"You kept it in your desk where anyone could stumble across it?"

"Having intruders in my home isn't a regular occurrence, present company excluded, and no one from the household ever comes into my room. Where were you expecting it to be? Under my pillow?"

Kid took the monocle and visibly relaxed as he fastened it over his eye. "I'd wondered, given your actions last time." The pocket watch was set on Saguru's night table with care.

Saguru smiled, amused. "That sounds a little like an accusation, Kid, and if I recall, you enjoyed the experience too." He strolled over to his dresser and after rummaging through it, began to pull on underwear without removing the towel. His back had been turned for only 11.3 seconds when he felt a pair of hands slip up his shirt. He jumped, berating himself for forgetting that his current conversation partner could move without a sound.

"I suppose that makes it my turn to repay the favor." Kid lifted Saguru's shirt up and off so he could run his hands over skin, tracing the lines of the detective's shoulder blades. Saguru gripped the top of his dresser to keep from reacting. Kid laid kisses over each bone in his spine, moving from the safe, cervical vertebrae to the slightly-more-salacious thoracic bones in the middle of his back. Saguru shuddered. When Kid hovered above the towel on his hips (Third lumbar, second? He didn't care anymore), Saguru started to get a little short on breath. Damn. For having no experience, Kuroba-Kid sure picked this up quickly.

"That's enough playtime for tonight," Kid remarked, hands and lips leaving Saguru's back. "Just a warm up." The absence ached. Saguru wanted to turn around and knock his thief onto the very convenient bed and made him squirm and scream in pleasure. He didn't trust his voice to be entirely under control just yet, but when he did finally turn around to respond, the window was open and the room was empty.

Understandably, Saguru didn't get much sleep that night.

The next day, he focused intensely on his schoolwork in order to block out memories of the previous evening. This technique worked successfully until he got to gym class. Saguru paused in his changing routine when the other boys in the locker room began to snigger. He turned around to see that yes, he was likely source of the laughter, given the way everyone was looking at him. "What is it?" He hadn't forgotten some piece of clothing, right? Saguru distinctly remembered putting on underwear before Kid – not thinking about that, not thinking about that.

Kuroba chuckled, waltzing over in nothing but his boxers to poke Saguru on the nose. "Someone's been a naughty detective. There's a message written at the base of your neck in black sharpie." Their classmates laughed a little louder in anticipation of Saguru's reaction. Kuroba's grin was sharp enough to cut the air. "There is a caricature of a very well-known international jewel thief and the words 'Kaitou Kid was here'."

Saguru's face burned instantly. He wondered if anyone had ever died of mortification, and made a note to look it up when he got home. He realized that this was also part of the thief's revenge for avoiding his heists. It was a reversal of their other encounter; now Kuroba-Kid was the one looking on while Saguru was rattled. "I'm going to kill him," Saguru growled. You, his eyes told Kuroba, but he wasn't about to say it in a locker room full of witnesses. "It's not what you think," he informed his classmates. "He has a habit of making my life miserable by playing ridiculous jokes on me." None of the teenagers in the room really bought that, he could tell. They'd all seen him blush. However, that was his defense and if any of them decided to tell the police, he was sticking to it.

After school, Saguru threw his backpack onto the cozy chair in his library and decided that he would drown out his feelings of embarrassment by reading something familiar. He approached the Conan Doyle shelf and stopped dead, immediately recognizing that the spines on the books weren't the color of his Holmes collection. Saguru knew those volumes like he knew his own body. He turned his head to read the titles: The Extraordinary Adventures Arsène Lupin, Gentleman-Burglar; Arsène Lupin versus Herlock Sholmes; The Hollow Needle; The Crystal Stopper; The Confessions of Arsène Lupin…. The list went on, one LeBlanc book for each of the Conan Doyle books missing.

Saguru pulled out the first volume. They weren't in any sort of alphabetical order, so he assumed they'd been organized chronologically. This was how Kid wanted to play it, hmm? The felon had paid him back once for the kiss and now once for the theft of his monocle. However, Kid had organized two disconcerting events for the perceived insult of avoiding heists – the bathroom incident and the sharpie marker debacle.

Saguru was feeling the need for a little payback himself. So Kid wanted to double his pranks? Well, Saguru was all too willing to orchestrate twice the mischief for Kid until he could reel the thief in, little by little, to be friend, competitor, and lover.

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From Meri: The moment of sheer horror when Saguru sees the Kid caricature on the fogged-up mirror is my favorite part of this entire piece. It's actually the entire reason I began writing this, and I laugh every time I read that scene.

Please review! Even if it's just about a line you liked/disliked, every bit of feedback helps my writing :)