Based on episode 39, right after Kyu brings Ryu home (spoilers for the Hell's Maestro arc). Five things that might have happened that night.

"Hey, Ryu, if it wasn't your mom who picked you up before, was it your big sister?" Kyu had propped himself up on one elbow so that he could look over the edge of the bed at Ryu. "Did you not want anyone to flirt with her, or something?" They had talked since dinner, mostly about trivial things, until Ryu thought they would both have to run out of words. Somehow Kyu kept thinking of new things to say, sometimes rather startling things. Case in point.

"She wasn't my sister. We're not related." Ryu didn't really want to talk about that. He had promised that he would tell Kyu everything in time, and he had mostly meant it. He would tell Kyu if he ever needed to know, or if he ended up finding out part of it, because at that point he would 'need to know' if only to keep his curiosity from driving both of them crazy.

If he was being honest with himself, Ryu knew he didn't want to tell Kyu anything until Kyu truly needed to know. He hated the thought that Kyu, who had stubbornly defended him, might never trust him again. He just wasn't ready to let go of Kyu's friendship.

Worse was the thought that Kyu could be put in danger for knowing too much. He was in enough danger simply for being too clever. Ryu didn't think anyone would try to 'silence' Kyu before he could spread the truth, especially if Ryu ended up being conveniently expelled from DDS and forced to return home, but he wasn't in any hurry to risk that, either.

Ryu still didn't want to tell Kyu too much, but at the same time he didn't want to lie to Kyu outright. "I wasn't living with my family," Ryu explained softly. They could claim that Pluto was part of his blood all they liked, but he refused to call the operatives that kept tabs on him his family.

Kyu was leaning over the edge of the bed now, eyes wide with shock and awe. "Was she your girlfriend? Did you have a fight?"

"What?" Ryu pushed himself up onto his elbows, staring at Kyu in disbelief. "No."

"She's not your girlfriend?" Kyu sounded oddly hopeful as he asked this.

Ryu was torn between laughter and shouting, 'oh God no,' up at Kyu. He settled for gasping out, "No, no, never," around a sound that might have been a laugh if he hadn't choked on it.

Kyu gave him such a puzzled look that Ryu swallowed the urge to laugh. "I don't have a girlfriend," he had to explain to Kyu. He didn't want one either. It would be too much trouble, on too many levels.

"Didn't you think she was a beautiful person?" For some reason Kyu just would not let this go.

"Not really, no." Ryu hoped that Kyu wasn't thinking about her as just another harmless, pretty girl. "She had a really bad personality," he told Kyu quickly, "and she's a lot older than she looks." 'And she's much too evil for you,' he wanted to tell Kyu, but he didn't think he could without explaining just how evil.

Kyu was studying him thoughtfully. Ryu hoped that Kyu didn't just think he was in denial about her being his ex-girlfriend. "Is that why you wouldn't hang around long enough to introduce her?"

"That's right." That, and he knew she would have taken the introduction the wrong way, even if it might have made his classmates less suspicious.

Kyu had his elbows digging into the mattress to keep himself from sliding off onto Ryu's futon. Ryu kept a close eye on his balance. He did not want to be a landing pad right now.

"What's your type, then?" Kyu finally asked.

"Huh?" Ryu had been working out exactly how much distance he would have to put between himself and the side of the bed to keep Kyu from landing on him if he slid off. He hadn't been expecting further interrogation.

"What type of girl do you like?" Kyu persisted. Ryu didn't know what had brought this on, except maybe that he had just explained that he wasn't into older women with bad attitudes.

"I don't really like. . ." Ryu stopped and had to rephrase that, "I mean, there isn't a specific type that I like."

Kyu seemed to consider this answer, while Ryu wished that he would leave the subject alone, or at least stop watching him over the side of the bed.

Finally Kyu said, "I thought you might have a really specific type, since you never even try to flirt with girls when you're out with us. Even the ones that are already interested in you. Or at least it doesn't seem like you're flirting on purpose," he corrected himself.

"I don't flirt!" Ryu spluttered. He didn't, he couldn't, see where Kyu had gotten that idea.

Kyu tilted his head, looking at Ryu thoughtfully. "Your face is all red."

Ryu could feel heat rising in his cheeks, and he was sure that his face was much redder than it had been before Kyu had pointed it out. "That's because you're bringing up unnecessary things." It was embarrassing not knowing what to say. He hadn't really thought about talking about something like this casually, even with Kyu. Especially with Kyu.

"Sorry." Kyu did not look particularly sorry. "It's just funny. It drives Kinta crazy sometimes. He thought you were never interested because you already had a girlfriend, and you never hung out with us because you had to rush off and see her. He followed you home once, trying to prove it."

"So that's what that was about," Ryu said, before he could stop himself. He remembered leading the two of them on a long, fruitless chase one afternoon. It had actually been rather fun listening to them following, especially when they accidentally knocked over a display of handbags outside a nearby shop by trying to both duck behind it at once. He had stopped and pretended to read the headlines at a newsstand around the corner, to give them a sporting chance while they rushed to pick everything up.

Waiting had probably been a bad idea, since after that he found it impossible to shake them. He finally had to choose a spot on a park bench and pretend to read one of his schoolbooks for over an hour before they got bored and left him alone. They had both tried to be extra nice to him the next day, so he had assumed they felt guilty. He hadn't had the heart to tell them that they were not at all sneaky after that.

Kyu looked extremely embarrassed now. He reached up to rub the back of his neck, blushing. "You knew we were there?"

"Yes." It was interesting to Ryu how Kyu had admitted that he was there only after he realized that Ryu already knew. If it drove Kinta crazy, how did Kyu feel about it? Ryu quickly dismissed that question as irrelevant. Probably he had just gone along to practice.

"You didn't get stood up, right? I said you would have mentioned it if you had a girlfriend, but then. . ." He dropped his hand to steady himself on the edge of the bed again. "I guess you didn't even tell us you weren't living with your family."

"I couldn't tell you," Ryu explained. "I was only staying there so that I could go to DDS." Both of those statements were perfectly true, though Ryu knew he was leaving out a lot of details that Kyu really would have wanted to know. Like exactly who he had been living with. "Besides," he added, "I didn't want you to think badly of me because of it."

"I wouldn't think badly of you." Kyu looked oddly hurt, as if he couldn't believe Ryu didn't just expect his friendship was guaranteed. "I just thought, I mean. . . if you did have a girlfriend you forgot to tell us about, I wouldn't be that surprised. Because you have a nice face, and you try to be nice, and, well, most of the time you are. . . plus it seems that you're really popular, so. . ." by the time he trailed off with a shrug he looked about as embarrassed as Ryu felt.

"I wish you wouldn't say things like that." Ryu lay back down on his futon so that he could look up at the ceiling instead of at Kyu.

"But I really don't think badly of you," Kyu insisted. "We're friends!"

"I know." Ryu ended up turning his eyes back toward Kyu anyway. He willed himself not to blush, looking up at Kyu. Kyu, who's opinion mattered more than it should somehow. "But it seems like you always comment on what other people think of me." It actually seemed that Kyu only liked to comment on what girls thought of him, which was extremely embarrassing. Besides, Ryu didn't think that Kyu knew that any better than he himself did.

Ryu waited a few seconds to be sure that Kyu wouldn't explain on his own and save him the trouble, and to gather his courage, before asking, "What do you think of me?"

"I think you're fun to be around. You're a good person, Ryu." Kyu sort of smiled as he said it, as if he was glad Ryu had given him the excuse to say it, "I'm glad we're friends, because I really like you."

"I'm glad too." Ryu did want to be friends with Kyu, and it was deceptively easy being around him, liking him. He wondered if there might be something he was missing that would trip him up later. "But, somehow it seems like we don't know each other outside of school, right?"

Kyu looked rather startled, and Ryu immediately wished he hadn't said anything. One evening talking with Kyu was apparently all it took to make him blurt out things as soon as he thought them. He would have to be more careful.

"We're not at school now," Kyu pointed out. "Besides, isn't that easy to fix?" He rolled his shoulders into a more comfortable position, as if settling in, before asking, "What do you want to know?"

Everything. That probably wasn't fair, at least until the time came when he had to, or was free to, tell Kyu everything he was holding back. He had only meant to spend time with Kyu and learn what he liked and disliked beyond being a detective.

Right now, the only thing Ryu could think of to say was, "What's your type?"

If Kyu had looked startled before, it was nothing compared to the expression on his face now. He stared at Ryu for a moment, as if waiting to be told it was a joke, then rolled over and out of sight with a quick, "Goodnight."

"You asked me first," Ryu pointed out. He never would have thought about asking something like that otherwise. At least Kyu had time to actually think about the subject before being questioned.

"I don't know," Kyu said. His voice was a bit muffled, so that it sounded like he was hiding under his blankets or his pillow. "I guess it's just nice sometimes, if there's someone who you'd like to stop and get to know because they seem like a good person. And, I mean, someone who has a nice face, it's okay to just appreciate that, right?" Apparently Kyu hadn't been thinking in terms of 'type' either, which made Ryu feel a little better.

After a moment of thought, Ryu touched his own face, which Kyu had commented on several times now. "You mean a pretty girl?" he asked.

"Of course. What else would I be talking about?"

Ryu walked his fingers over his own face, chin, lips, nose, and cheeks. He knew his own face, but it was hard to think of it as being attractive or not, because it was his. He had never thought about himself as having feminine looks, but. . . Kyu did seem to just appreciate pretty girls in general, and had commented on Ryu having a nice face as well.

"What about me?"

"What!?" Kyu flailed his way into a sitting position, sending his pillow flying to the foot of the bed as he sat up.

"It seems like you look at my face, the same way you would look at a girl." Ryu didn't know how else to explain what it felt like when Kyu commented on him like that. It did seem that once in a while Kyu just stopped and studied him, but Ryu had always thought before that Kyu was just trying to figure out what he was thinking.

"No way! Looking at your face is completely different from looking at a pretty girl!" Kyu was leaning on the edge of the bed again, but he kept moving around as if he couldn't decide if he wanted to look directly at Ryu or not, until Ryu began to think that he was going to slide right off of the bed after all. "Um. . . I mean. . . there are different reasons for liking your face."

"Now you're blushing," Ryu pointed out. This was a far more interesting reaction than he had expected from Kyu.

"I wasn't trying to make you uncomfortable or anything." Kyu seemed to be fumbling for words, so Ryu interrupted him before he could start stumbling over embarrassed apologies.

"I'm not uncomfortable. I just wanted to know. I don't mind if you think I have a feminine face."

Kyu looked at him for a long moment, slowly calming back down. "It's not feminine. I mean, not really. It's just, you usually have a calm expression." Kyu rubbed the back of his neck in embarrassment. "It's hard to explain. I thought it was a little strange at first, you managing to be so calm, but it's kind of nice. It makes me sort of happy just seeing you, knowing how hard you're actually thinking. And sometimes I get the feeling like you're pointing out hints for the rest of us, but somehow it's not something that an outsider would pick up on."

Ryu found himself smiling at Kyu, probably ruining the expression that Kyu liked, but he couldn't help it. "I like seeing you more, then, because you usually look so cheerful." It was true, too. Kyu's joy could be extremely contagious. He couldn't say it, but as long as Kyu's exuberant, friendly smile was turned on everyone, he wouldn't feel bad soaking up some of it.

Kyu smiled, looking all at once less nervous and more like his normal self. "You know I can like you without thinking you look like a girl," he said quickly.

"I know." They were friends, so it shouldn't influence Kyu that much either way if he had feminine looks, right? He had just wanted to know.

"But I really do like you, Ryu," Kyu added quickly. He didn't seem to have even heard Ryu's answer.

"I know." Kyu had told him so several times already. He was starting to wonder why Kyu wanted to make that so plain all of a sudden, when Ryu had already accepted that they were friends. "I do too."

"You. . . know?"

"I think so." Ryu hoped it was more than enough that they really did like each other, because he thought he was missing something here. As long as he could spend time with Kyu as friends, it should be fine, right?

"Um. . . Ryu?" Kyu looked down at his hands nervously. "Do you also. . . ?"

Ryu studied Kyu's blushing face for a long moment, then smiled and rolled over. He thought he might have just figured out what Kyu was getting at. "Goodnight, Kyu."

"That's not fair!" Kyu burst out after a few seconds of shocked silence.

Ryu smiled into his pillow. He half expected Kyu to pester him until he got an answer. Instead, Kyu was silent for several minutes, probably waiting for Ryu to stop playing around and answer. Then he heard Kyu let out a long sigh, then settle down with a whisper of, "Goodnight."