With the BO finally taken care of and Haibara perfecting the antidote Shinichi begins to relax a little bit. He finally been reunited with his childhood love Kaito and best friend Ran. It wasn't until a few days after taking it did he begin to notice something strange. His eye sight was keener then it had been before. Much the same with his sense of smell as well as hearing.

When running after a suspect a few days ago he was able to twist and turn much easier than he had before meaning his reflexes were much sharper. He found himself extremely flexible- something Kaito exploited in bed- He also sometimes found himself slightly distracted by dangling thread, but he was able to control the impulse to bat at it. Worried what more effects may happen he sought out Haibara for advice.

What he heard in return was slightly unbelievable, but considering he had been turned into a child maybe it shouldn't have been so shocking. Compared to that this was tame. It appeared that Haibara had mixed a bit of cat DNA with the antidote by mistake- which somewhat begged the question as to why she had cat DNA to start with, not that she would give a straight answer- meaning he now had some mannerisms of a cat.

Thankfully since it was a small amount he had been given, Haibara was 62% certain he wouldn't grow cat ears and tail in the next few weeks or have any more cattish impulses crop up. Although later that night he found he loved having his hair played with along with being able to purr, so he wasn't completely sure her estimations were correct. She'd agreed to look further into the matter to see if she could rectify the problem but she didn't advice it. His body had under gone a massive amount of stress and she didn't think his body could handle any more foreign drugs in his system.

So that led to now, Shinichi currently feeling skittish and anxious whilst being unable to stay still. There was this…. feeling he had. Like an itch he just couldn't scratch. There was something he really really needed to do, but he just didn't know what it was. He'd tried everything to settle. Ranging from eating, reading, cuddling with Kaito, giving into the damn impulse to bat at things – much to Kaito's amusement- he'd even gone out for a walk and climbed a tree for goodness sake but he still couldn't shake the feeling.

'Maybe I'm thinking too human' Shinichi mused to himself. 'this is obviously part of the cat thing so maybe I should just follow my…instincts? He thought uncertainly. Taking a deep breath and letting it out slowly Shinichi analysed himself. There was a feeling he hadn't felt before, knowledge he had that he hadn't known before. Such as he instinctually knew how to raise his own children. wait what?! Okay gonna move on from that instinct I think Shinichi thought a little freaked out. He also instinctively knew how if he rubbed against stuff it would mark his territory and how to stalk around the room as quietly as possible without alerting his prey he was there.

However, there was two instincts blaring loudly at him now he was listening, it was… 'nesting! But I'm not even pregnant! Surely my instincts know I'm not, right?! Maybe it's because I'm not full cat that my instincts are a little messed up? Okay calm down nesting is no biggie I can do that, now what's the other? Kneading what's thaa…oh Kami-Sama this is amazing! I could do this forever this is so relaxing hmmm…' Shinichi began to purr as he gently pushed his slightly curled palms in and out against the soft fluffy pillow.

That's how Kaito found Shinichi half an hour later. Sat up and leaning against the sofa as he kneads. He didn't have the heart to laugh as Shinichi looked so relaxed doing that. He knew his partner had been restless and was glad he had found a way to calm down. Not wanting to disturbed him Kaito wrote a quick note saying he had gone out, silently placing it on the table in front of Shinichi before slipping out the front door.

10 minutes after Kaito left Shinichi finally snapped out his pleasure induced haze. Spying the note in the corner of his eye Shinichi read it to discover Kaito had gone to work and wouldn't be back for another two hours 'Perfect I can start nesting then. He won't make fun of me for it if he can't see me doing it' he nodded in satisfaction before going off to the spare room.

Opening the dark mahogany door, Shinichi gazed around the empty room. It had one medium window that had an extended ledge so two people could sit on it and gaze out. The view was beautiful. From this high up and at an angle of 30◦ north west (yes, I actually looked on the Conan map and used a compass to work it out cause I'm a nerd like that) you could see Beika park in all its spender. The walls were bare bar the pastel blue paint. It was already beginning to feel safe and calming. The floor was covered in a fluffy cream carpet. Taking another glance around he turned around, walked into the study. A plan already forming in his mind on how he wanted it to look.

Rooting around in the left side draw he pulled out the measuring tape with a triumphant noise. He walked back into the spare room picking up some paper and a pen to write with, on his way out. Once back in the room the detective began taking measurements of the window. Jotting down the measurement on the paper he brought with him.

The first thing he was going to do was buy blackout curtains. There was no doubt he would find himself curled up on the windowsill when it was sunny but right now his instants wanted it to be dark. While he was at it he also took measurements of the rest of the room. He would need those when ordering the bookcase and desk.

After getting what he needed he walked back out, this time closing the door behind hm. Entered his and Kaito's room he grabbed the laptop from its resting place, on top of the desk. Proceeding to settle on their bed to order the equipment he would need.

The first thing he looked into was clear fire proof paint for wood and walls. Sometimes Kaito's experiments got a little volatile. The next thing he looked into was a work desk for Kaito. He found the perfect one. It was made of polished cherry wood. The top had 4 thin long rectangle draws. The row below that had 4 small square draws on the left. It had 3 medium rectangles in the centre going down and another 4 small square draws on the right.

Another row below the 4 small square draws on both sides were 3 medium square draws. Between the square draws and the rectangle draws in the centre and sides, there was one rectangle draw on its side, one on the left and one on the right. Below that was a flat surface to wright on. With two hollow gaps under the square draws to place paper. To complete the top section a latch poked out with a key hole above. Pulling the latch revealed a lid of sorts for the desk so it could be covered over and locked when not in use.

Below the writing desk was a thin draw in the centre. The handle was of a curved leaf so your hand slipped in the centre to pull open. Beside that was two wooden slates that pulled out to extend the desk on both sides. Bellow that was a hollow space for your legs. However right at the back of the hollow was a hidden panel where documents could be placed.

On both sides were two large rectangle draws and one large square draw at the bottom. These too had handles in the shape of curved leaves. To protect the writing desk from view the sides had a panel of wood in the shape of a guitar side. To give the desk some character 4 pillars were put in at the edge of the large draws at the bottom. They reached to the bottom of the writing desk. The side of the desk had 4 squares in a 3D effect on each side. He just knew Kaito would love it.

The next half hour was spent searching for a medium sized book case and a few other bits and bobs he would need for the room. He'd just finished paying for the last of the orders when Kaito return home.

"Tadaima Shin-Chan" he heard Kaito holler up.

"Okaerinasai Kai-Chan" he called back, making his way down stairs. Stopping in front of Kaito giving him a welcoming kiss on the lips before pulling away and heading to the kitchen.

"I'm about to start dinner what are you fancying?" he queried over his shoulder. Opening cupboards to show what they had.

Kaito looked thoughtful for a second before he grinned, eyes brightening "teriyaki chicken please" he requested enthusiastically.

Shinichi nodded and began pulling out the ingredients he would need, setting up the grill as he passed by. Kaito on the other hand, made himself comfortable on one of the island seats preparing to watch Shinichi prepare their dinner. He chipped in his bit by filling Shinichi in on what had happened at work today.

It wasn't long before Shinichi took a seat beside him, digging into the delicious meal. Retreating to the living room to carry on chatting once done. Before long the days activates caught up with Shinichi as he began to fall asleep. The one thing he was thankful for was that the instinct to be nocturnal didn't affect him unless he was stressed or running on adrenaline.

The messy haired male carried Shinichi to bed. Changed him into PJS before changing himself, jumping into bed and pulling the teen close. Shinichi instantly curled up against him purring. Kaito fell asleep to the sound of his soothing purrs while Shinichi fell asleep to the sound of his lovers' heartbeat.

The next morning Shinichi was anxious for Kaito to leave. The delivery of paint would arrive any minute now and he was itching to get started on his nest. Lady luck seemed to be looking down on him today- probably to do with the fact he was also doing this for her favourite person as well- and Kaito was called in to work with an emergency, one of the props broke it seemed. He wasn't sure as the details given were vague.

Not 10 minutes after his boyfriend had left the paint arrived. After signing for the delivery, he carried the paint up the stairs. Just as he opened the door to the room and placed the paint down his mobile began to ring Kaito's personalised ringtone. He answered it quickly.

"Hey Shin-Chan I know I said I would only be an hour, two max but it's much more serious than I had thought. I'm gonna have to stay here for the day and fix everything. I'm really sorry babe" he informed apologetically.

Shinichi felt ecstatic and did a little jig. 'yes! that means I can have this painted and be showered before he gets home!' Shinichi thought happily. He toned down his excitement as not to make his magician suspicious before addressing his mate. "It's okay darling I've got some cases to work on so its fine. Pick up dinner on your way back please?" he questioned sweetly. He knew neither he nor Kaito would feel like cooking tonight.

"Okay sweetheart I'll pick up some of your favourite ramen tonight. I'm sorry but I've got to go now, love you" Kaito agreed one again sounding apologetic and this time slightly distracted. In the back ground he could hear cries and yells of people scurrying around, the sound of metal dropping on stone. Yikes his lover was going to have his hands full today too it seemed.

"Love you too" he responded fondly before hanging up. Not before he heard a crash causing Kaito to swear under his breath. The neat haired male giggled at that.

Going back to his room he changed into some old clothes he didn't mind getting paint on and grabbed the old sheet he'd gotten out the night before. Making sure to grab paintbrushes along with the step ladder before returning to the room. He read the instructions on the paint carefully. In his head he measured out 6.5 square meter per litre and began the first coat.

By the time he had done the first coat around the room the first wall he began with, was ready for the second coating. Halfway through the first coat he'd had to leave to get some nose plugs. It seemed he could smell the paint fumes a lot stronger than normal. Thus, beginning to give him a headache. Luckily the plugs worked and the headache eased down.

Once the second coat was done Shinichi packed up the paint. Leaving the wood fireproof one in the room for when the things arrived. Leaving the window open to air the room and help the paint dry faster he left the room. Making sure the door was closed before taking the paint cans down the stairs, placing them into the shed. Once done he went back upstairs, stiped and jumped in the shower. Giving off a light purr as he began to vigorously scrub his chestnut hair.

He didn't stay in the shower long. Jumping out the shower, he began towel dry himself. Dressing in his blue fluffy PJS Kaito had brought him once dry, before going downstairs to curl up on the sofa with The Sign of Four. All the while still lightly purring.

He was still purring when Kaito got home only becoming more pronounced as he entered carrying two ramen and preceded to hand him is favourite. Kaito chuckled slightly as he ran his hand though Shinichi's still damp locks, watching as he leaned into the touch, butting his head against it. He quickly settled on the sofa beside Shinichi, tucking into his ramen once comfy.

The two chatted in between bites filling each other in on the day they had. "Honestly Shinichi if It wasn't for the fact I have a show there tomorrow I would drop them like a sack of potatoes. They had messed with all my props thus wrecking them and a few are still missing. They'd also fooled around with the stage design its self so when they tried to do my levitating trick they were off centre, ending up destroyed the set. There lucky I'm not going to sue them for destruction of property as well as theft. If you find a murder done by a pack of playing cards you know where they got them" Kaito ranted heatedly. Making wild hand gestures, almost knocking Shinichi's ramen over, causing him to scowl distrustfully, clutching it closer to his chest.

Once the up and coming magician had calmed down enough Shinichi placed their ramen on the table side. crawling onto Kaito's lap, straddling him. He wrapped his arms around his neck and began caressing his hair, pushing his body as close as possible to share his warmth to calm Kaito. Making sure to purr softly as he knew it relaxed Kaito.

Kai remained tense for a few minutes before he gradually relaxing back into the sofa. Wrapping loose arms around Shinichi. The self-proclaimed detective kept up his ministrations for a while longer until Kaito was boneless and let out a relaxed sigh. Gently he pulled his arms away and carefully leaned over to grab the ramen, coaxing his lover to take a bite.

The two remained that way for some time. Shinichi sat on top of Kaito's lap, feeding him and alternating between having a bite of his own before it was all gone. Placing the now empty ramen back on the side, nuzzling into Kaito's neck to give him comfort once it was out of the way. That night the two fell asleep on the sofa, keeping each other warm.

Shinichi was awoken that following morning by the sun in his eyes. He uncurled from on top of Kaito, stretching out like a cat-oh the irony- before padding off to the kitchen to get a cup of glories coffee. Making breakfast whilst he was at it. Kai would need a good breakfast today since he was having to go in and continue to fix other people's mess as well as prepare for tonight's show. If he had time he would also make Kai some lunch to take with him he decided.

When Kaito woke twenty minutes later he found his beloved gone. Hearing a noise from the kitchen he went to investigate. Wondering into the kitchen he was met with the sight of Shinichi humming quietly to the song playing on the radio, dancing his way around the kitchen.

The delicious aroma of freshly brewed coffee with scrambled eggs, bacon, hash brown and beans were mouth-watering. Just as he sat down at the table Shinichi glided over with a plate and a mug full of those moth watering smells. His stomach grumbled in thanks before he dug in. Moaning in appreciation as the flavours burst on his tongue.

When he looked back up he saw Shinichi coming over with another plate. Thinking it was shin's he went back to eating, only to be surprised when it was placed down beside his plate a few seconds later. Glancing over he let out an exited squeal as he caught sight of his favourite breakfast, chocolate chip pancakes! He gazed up lovingly at Shinichi who wore a shy smile before pulling him into a short-heated kiss as thanks, turning back to his food. Leaving Shinichi, a little dazed with a dreamy smile on his face.

Kaito was just leaving when Shinichi appeared beside him. Holding out a bento box. Handing it to him with strict instructions not to open it until lunch. Making him pinkie promise not to before he let go of the box. Then gave him a goodbye kiss and waved him out the door.

Shinichi's day consisted of mostly wondering up and down the stairs. Opening the door and signing for different deliveries, then either instructing them where to leave the parcels or hefting it up the stairs himself. He thanked Kami that the desk and bookshelf had delivery placement in the pricing otherwise he would never have got them up the stairs.

Once that was done he set about painting the two with the fireproof paint specially for wood. While those were drying he set about putting the blackout curtains up. Easier said than done. They were heavier then they looked and kept falling on top of him, trapping him underneath. After wiggling out for the 4th time he huffed sulkily before ringing professor Agasa for help. Between the two of them they managed to get them up without any further incidences. He thanked he professor before he left and checked their handy work. He nodded satisfactory at his choice, a simple pastel green that complimented the room nicely.

Pleased with himself he went about unboxing the rest of the items he had bought, setting them up when they required it. Making sure the desk and bookshelf were completely dry before putting anything on them. He gave a content purr as he gazed at the foundations of his nest. It was really beginning to take shape all he needed now was a load of blankets/pillows and a few bits and bobs around the house and it'll be done. He left the room with a spring in his step.

When Kaito got home he found his lover in the kitchen making dinner. Bounding up to him he proceeded to kiss the life out of him. Only breaking to let Shinichi catch his breath before diving in for more. He felt Shinichi melt into him, felt the rumbling purrs on his chest as he mapped out Shin's mouth. After what felt like hours but could of only have been five minutes the couple broke apart to catch their breath. The detective letting out a slight whine at the loss.

"W-what was that for?" Shinichi gasped breathlessly. Shivering as Kaito's breath puffed against his neck.

"That was because you are the best boyfriend ever. Thank you for making me that orgasm inducing chocolate cake with the melted snickers on top. It was heavenly. Just what I needed as a pick me up after the day I had." Kaito murmured into his ear. Letting his lips caress it before nibbling lightly, causing Shinichi to gasp.

"Your wel-welcome" he stammered out between moans. Gently pushing the thief away before it got too heated and he burnt their food. Kaito got the message and gently extracted himself. Not before placing one final kiss on those addicting lips though.

Shortly after Kai announced he was going for a shower, to wash the days grime away apparently. Promising he would be down in time for dinner. Leaving a flushed Shinichi to carry on cooking.

It wasn't until a few days later that Kaito noticed that things had started to go missing around the house. At first it wasn't noticeable, just a pillow vanishing here and there, the fluffy blanket nowhere in sight. It wasn't until his things began to do the Houdini act did he begin to notice. Two of his hoodies had mysteriously disappeared from his wardrobe. Next to go was a few of his shirts, including his favourite 'ava kavada bitch' t-shirt.

In the beginning he'd just thought they'd fallen down the back of the wardrobe or was in the wash/ laundry basket, but no they weren't there. Writing it off as one of those strange things he got back to his daily routine. It wasn't until his heist plans and gadgets began to suddenly turn invisible did he sit up and take action.

He'd noticed beforehand that his lover had been acting suspiciously the last few days. Disappearing from view for a few hours a day before returning, not mentioning what he had been up to or where he had been. Deciding that Shinichi was the culprit as he was acting weird, he followed him one day. Curious to see why he wondered into the north wing so often. Watching as the high school detective looked around to make sure Kaito wasn't around before entering the room. During this Kaito made sure to stay fully hidden in the shadows, pressed up close against the wall.

He waited twenty minutes before barging in only to stop short in the door way with his mouth hanging open at the scene before him. On the left had wall was a small book case full of science and magic books as well as their beloved Holmes and Lupin collection. There were also a few case files lined up beside them with a remote of some sort.

Beside the shelf was a soft looking black love seat. Looking further over he saw the extended ledge with a padded cushion to sit on with a layer of blankets and fluffy pillows. What really caught his eyes was the desk. It was beautiful. Everything he could ask for in a desk. On the left side of the desk attached to the wall was a massive magnifying glass with a built-in light and smaller magnifiers to look even closer.

He noticed a few papers littering the desk. Upon closer inspection he found them to be his missing designs along with his missing props lying beside them. He noticed a few of his tools placed next them and by the looks of things he would bet money the rest of the missing things would be in the draws. Stopping himself from investigating further he continued to look around the room. On the wall beside the door was a small flat screen Tv. That explained the remote on the bookshelf.

Closing the door behind him he spotted a coffee and hot chocolate maker beside a mini fridge with two mugs. Finally, his eyes rested on the centre of the room. It was a mass of blankets and pillows. Not a speck of flooring could be seen. Cured up in the centre of the pile was Shinichi, looking up at him with wide terrified eyes. Hand clutching at the shirt he was wearing causing Kaito to notice it was his missing favourite top. Well that explained why he couldn't find it. He cautiously made his way to Shinichi sitting down in the soft bedding in front of him. Restraining himself from glomping his soulmate for how cute he looked.

"Shinichi what's going on? Why have you made this…." He trailed of uselessly, unable to find the word to describe what "this" was.

"Nest" Shinichi supplied quietly, still looking frightened and worried but not as much as before.

'yeah, a nest just about sums it up' Kaito thought, absentmindedly taking in his surroundings again, turning his attention back to Shinichi when done, who had at this point sat up. "is this why you've been so restless the last few days? You've needed to nest?" he coaxed softly.

Shinichi nodded slowly. Licking his lips before speaking in a soft worried tone.

"I have these…instincts sometimes. Things I know how to do and need to do that I didn't before. Even though I'm not pregnant I felt the need for a nest. I think it's because I'm only one third of a cat that it's a little messed up. I just… needed a cosy place to come hide in for a few hours a day. I was going to tell you but I got so frightened of what you would think of me if I told you. I um I even set up a desk and everything for you because I feel most safe and relaxed with you here" he explained in hushed tones. Stopping every now and then to collect his thought.

A smile slowly worked its way on to Kaito's face pulling Shinichi into a hug. "Never be afraid to tell me things. I think it's really adorable you made a nest and I'm over joyed you want to share it with me. Thank you very much for getting me the desk and making preparations for me. Its everything I dreamed off" he kissed Shinichi's forehead.

Gently Shinichi uncurled his hand and gave him a key "The top pulls over the writing desk and small draws keeping them hidden under lock and key. This is the key. There is also a loose panel at the back of the foots space to hide documents and iv…." He trailed of nervously. Kaito gave him an encouraging squeeze while taking the key. "and iv painted the walls and wood in fireproof paint so you don't have to worry about them catching fire" he rushed out embarrassed as he cuddled into his thief's chest to hide his blush.

Kaito felt his heart warm at Shinichi's confession and cute reaction. "Thank you kitten, you have made an amazing nest for us" he complimented holding him close. A smile and light blush spreading crossing his cheeks. Falling in love with his destined all over again.

Shinichi let out a loud purr as Kaito said the nest was amazing. He's glad Kaito is so understanding of his strange quirks and willing to indulge him. It was official, he had the best mate ever.