Disclaimer: I do not own any characters from the Mortal Instruments series. I wish I did, really I do, but I don't.

Burying her head in her soft pillow once again, she let out a muffled sigh of agitation. Once again, the young red head was finding it pretty hard for her to fall sleep. It was an annoying habit that was starting to wear her patience thin. Once upon a time, she could easily lie down and let her dreams whisk her away to a perfect world, but now she was only plagued with nightmares and the strong case of insomnia. Perhaps things would've been better if they had won the war like they all believed that they would.

Six months had passed and Idris was under the control of her father. They had fought long and hard, the death toll of the Shadow Hunters being in the very high numbers. The city was in ruins for weeks, bodies littered the ground, demons feeding off the dead bodies while Valentine spoke to what was left of the Clave. Her mother had gotten away, as well as the Lightwoods. The fortunate ones who were able to go into hiding were safe, for now. She herself would've gone into hiding too, but she wasn't so lucky. Valentine had captured her as soon as she could. She was vulnerable after all, bound on the ground when her father had called onto the great angel. Jace had been murdered hours ago by her brother, but she didn't know that until days later.

Poor Jace. She had fallen for the young blonde as soon as she had met him, but when time had gone by and she learned that the two weren't true siblings, the love she thought she felt started to whither. Was that she was only interested in him because it was forbidden? She never liked to think about that, to wonder if she truly was as sick as she felt half the time. She figured it was because of her Father, but even he didn't believe in incest. Perhaps the run in with Jonathan and the fact that her brother was the only company she had was starting to have ill effects on her. For whatever reason, Valentine felt like he needed to keep the pair together and that the three of them would be a family. If that was the case, someone needed to sit Jonathan down and explain how siblings were supposed to act.

Hugging the pillow close to her face, she shifted her body to lie on her stomach. The thin sheets twisted around her thin form. It was summer and for whatever reason, she was feeling a bit uncomfortable. It wasn't exactly too hot or anything, but the coolness of the room seemed to soothe whatever it was that bothered her. The gentle breeze outside brushed into her bedroom lightly, the quiet sound of night somewhat comforting. Many days had gone by where the demons running around screeched and tumbled around. She always feared at first that they were going to jump in her room one day and rip her to shreds. Valentine had spoken clearly that no such thing would happen, but when you had a crazy father who wasn't exactly in his right mind, you could never be sure.

Of course, the apple didn't fall far from the tree when it came to Jonathan. He was worse than Valentine, but Clary figured it was because of his demon blood. He enjoyed killing demons and humans alike, toying with them until they convulsed with blood dripping from their throat or a gaping hole in their body. He was very morbid, cruel and basically a killing machine. Everyone feared Jonathan, even Clary, but there was some other reason why Clary was afraid of him. The way her brother looked at her wasn't exactly normal. He always seemed to have an eye on her. Before, she made the mistake of looking into his obsidian eyes and seeing the traces of interest and the raw glimmer of lust. If she didn't know better, she figured that her brother wanted to eat her. However, she knew deep down that he wanted her in a way that wasn't normal. The very thought of it made her skin crawl and the tinge of heat roam over her body.

Many nights she found herself trying not to think about that, trying not to wonder what it felt like. She and Jace had never got that far and for whatever reason, she felt happy that they didn't. Jonathan once or twice had snuck in his touches on her body, innocent really but they didn't feel that way. Nothing was innocent when it came to her brother and she started to understand that. She used to be nervous when they would be alone and of course she had a good reason to be. A few days ago, the psycho had cornered her in the hallway and without saying anything had kissed her. Clary had totally flipped, shoving her brother away and putting up a front of disgust, but when she had managed to get him to leave, the warm tingling of her lips stayed with her for the rest of the afternoon.

Licking her bottom lip, Clary frowned a little at her thoughts. No brother was ever suppose to kiss her in such a way, but why was it that the thought of them actually exploring each other was something she was starting to wonder about every day? Clary didn't know the answer to this and to be honest, she didn't want to speak about it with Jonathan. It was bad enough that he was always stalking her like a wolf stalking a juicy rabbit. He was never going to stop until he got what he wanted and even then, Clary had a feeling that it would only get worse.

Clary had managed to get some of her thoughts in order before she suddenly felt a presence in the room. She never heard the door open, but that didn't mean anything. The eerie silence only made her stomach clench as she stared at the wall. Who was in here with her? Before she could move, she felt a heavy weight on her bed before a warm hand slid against her bare thigh. She twisted around instantly, hand raised to give the intruder a strong punch. However, her wrist was grabbed easily enough before it was pinned down. She blinked rapidly, trying to get her eyes adjusted to the darkness as she stared up at the figure. Instantly she noticed the outline of her brother's face, the white moonlight reflecting over his devilish grin.

"Tsk tsk. You shouldn't be so uptight. Who do you think would be in your room at this time of night?" he purred softly, his hand on her wrist tightening only a little.

Clary didn't answer, a glare forming into her gaze as she snorted at his remark. Clary hadn't expected a nightly visit like this from him, well, at least not so soon anyhow.

"Jonathan, get out," she said finally, turning away from him. "I'm trying to sleep."

He didn't answer, the male simply moving onto the bed to get more comfortable before he loosened his grip on her wrist some. "You weren't exactly sleeping. I was here watching you for the past ten minutes. You were wide awake. Perhaps I can be of some service?"

Leaning down he nuzzled the junction of her neck and shoulder, his hot breath sending shivers down her spine. How was this going to help? Feeling her body relax a little, Jonathan took the time to place a soft kiss before he used his tongue to lick a hot trail up to her earlobe. He heard the soft gasp of her surprise, the boy grinning like a Cheshire cat. "See? Feeling better already aren't we?" He took her silence as a yes as he went back to the junction of her neck. He slid her fangs over her pulse, feeling the heat radiating off her body. It was amusing to see her deny his touches. She craved his closeness and her relaxing right now was a good enough proof.

As difficult as it was for her, Clary knew that she needed to find her voice. The longer she kept quiet, the more she knew that Jonathan was going to have his fun with her. Logically, this would be the time for her to scream and send him on his way, but for whatever reason she wanted to enjoy his touch just a while longer. The touch of his fangs to her throat should've been more than enough to send fear into her body, but instead it was only adding to the lust that was already starting to warm her insides. Every kiss and lick caused the slight tingle in between her legs to grow just a little more annoying.

Using his free hand, Jonathan rubbed the material over his sister's right breast, giving her softness a gentle squeeze before he moved his hand down to her belly. He easily enough slid his hand inside to caress the soft skin above her belly button as he made his way up to her chest. Within moments Clary found herself erupting small moans from her parted lips as he fondled her. Jonathan had never gone this far before, only in his visions of Clary. She got him so hot and bothered just by existing and he was starting to grow annoyed at the fact that he had to touch himself to get release. It was time that Clary did what he knew they both wanted.

Deciding that she was distracted enough, he let go of her wrist and moved both hands under the material of her t-shirt, feeling both breasts under his hands as he continued to kiss and make soft bites all over her neck. With her rosy peaks standing at attention, he gave them both a pinch before he released his hold on them. Using a clawed hand, he ripped open her shirt to Clary surprise, doing away with the material. The cool air sent a rush of excitement over Clary, the feeling of lust already evident in her bright green eyes. Jonathan loved the look on her face, making a note to himself that he wanted to see this more often.

Shifting his body so that he was fully on Clary, he brushed his hardness through his pants against her thigh, wanting to remind her that she wasn't the only one affected by this. Clary could do nothing but let a blush creep over her cheeks, her body still not moving to object to what her brother was doing to her. Once again Jonathan was feeling over her body, massaging her breasts slightly rougher as he nibbled down the column of her neck. Once he reached her chest bone, he pulled back his face, his hot breath over Clary's before he leaned down and kissed her. His lips were strong and soft; a moan losing its self against her lips as Jonathan cleverly opened her mouth with his warm tongue and explored her hot cavern. Clary was surprised how gentle he was, the teen expecting her brother to be a lot rougher and sort of inexperienced. Jonathan of course proved her wrong, the sweetness of the kiss proving to be a good start for Clary.

However, it didn't remain like this for long. Once Clary began to explore her brother's mouth, Jonathan started to let his demonic side peek out a bit. He suckled on her tongue, careful of his sharp fangs as he tugged on her lip playfully. If Clary was slightly wet before, she was sure she was going to be soaking pretty soon. As their kissing continued, Jonathan brushed a hand over his sister's inner thigh, using his knuckles to feel over the outline of her underwear. He was so ready to rip the thin material off and have his way with her, but he wanted to play his cards right. If he wasn't careful, Clary would snap out of this any second and force him once again to finish himself off alone.

Clary didn't notice at first where Jonathan's hand was until she felt a brush of pleasure down below her legs. The touch surprised her and even though she had been needing the ache to stop, she suddenly found herself pushing gripping her brother's hand to stop him. Looking up at him for a moment, she suddenly clenched her fist and punched her brother in the face, giving him a hard blow. Jonathan hissed in pain, dark eyes instantly glowing with anger as he glared at his sister.

"Get away from me," she snapped at him, the feeling of lust instantly vanishing from her face. Jonathan released, moving faster than Clary could keep up with as he grabbed her hair roughly and yanked her head back into the bed almost painfully. The red head let out a gasp of surprise, her arms reaching to push her brother off of her before he used his free hand to keep her still.

"Now Sissy, do you think that was a wise decision?" he said in a dark voice, his hot breath pressed against her ear. "I might just have to teach you a lesson in manners." Clary looked up at him, trying to keep a strong face even though inside, she was panicking. Just what was her brother going to do to her?

~~~~~~~So…where am I going with this? No idea. I was thinking of just doing a bunch of one shots since there are not many stories with Jonathan and Clary. ; I'm not one to write smut all the time, but it is interesting to do and I need the practice. Oh well, might try some BDSM or something in the next chapter even if Clary seems pretty willing to do whatever. Sorry if I made her seem like she never liked Jace. I just didn't want to deal with a depressed and broken Clary. Those aren't that much fun…trust me. Anyhow, R&R if you wish to. :P