Sooo... :D

This is my first fanfic of any kind, let alone slash, so please review! Say whatever you want, just be honest!

This spawned from a mixture of innuendos from my English teacher, bitching about Clary and my own dirty mind :P And of course, I noticed the pitiful amount of JacexSebastian/Jonathan/Whatever (What it is called? Jastian?) Anyway, I myself am a fan of Jalec, but I read one fic about these two and wow ;)

Disclaimer: No, I do not own any of the characters, etc, etc (wouldn't mind owning these scrumptious boys, though)

Jace tried to ignore the presence of Sebastian he felt lurking behind him, but it was proving to be difficult. Something about Sebastian was... unsettling. Jace couldn't quite decide what it was. There was something in the way he met your eyes. Like he could see right through you or like he knew something you didn't. There was arrogance there, certainly, but there was also a sense of curiosity, and of something else. Something- darker.

And Jace couldn't help but feel there was something very familiar about those eyes.

Jace and Sebastian were alone in the Penhallows' house. The Clave were holding another big meeting, and they (being under eighteen) weren't allowed to attend. Isabelle had just left to show Max the Gard. Or at least, that was the pretence- she was actually sneaking Simon some blood into his cell.

The clock chimed ten. The meeting would have begun. Jace didn't expect to see Alec or Maryse or Robert or the Penhallows for hours yet. It would take at least an hour for Izzy and Max to walk to the Gard and back. And Isabelle would probably take Max to the shops and buy him sweets. She would never admit it, but Izzy adored her baby brother.

Jace abandoned the armchair he was sitting in and left the sitting room, trying to measure his pace. He didn't like Sebastian hovering behind him all the time. It made him nervous. And Jace did not like being nervous. He hurriedly tried to think of something to occupy his time. He settled on clearing up the dining room from the clutter that had been made at dinner. If he got desperately bored, he might even wash the dishes. Not only would this occupy his time, but it would also get him in the Penhallows' good books. And it might manage to take his mind off Clary.

At the thought of his sister, Jace gritted his teeth so hard it was painful. He wondered what she was doing now. Hopefully, Amatis Herondale was shouting at her for being so stupid and reckless and selfish and... All the things he'd yelled at her earlier. Jace closed his eyes, trying to block out the mental picture of Clary's small innocent face, with her broken expression, and tried not to think that he'd caused it. The pain was twice as bad, because he knew that Clary was none of those things. He took a long, steadying breath.

"Would you like some help with that?"

Jace started. He hadn't heard Sebastian enter the dining room behind him, but now he was standing not two feet in front of him. He was smiling politely, but Jace saw it again in his eyes, that darkness, that curiosity. Jace didn't answer immediately.

"No, it's alright. Uh, thanks." He replied, somewhat ungraciously. After all, it was a perfectly reasonable question, and even Jace couldn't find any underlying motives from it. He just didn't want Sebastian that near to him. He edged past Sebastian to the large mahogany table, and started collecting a stack of dirty plates. Sebastian followed close behind Jace, gathering the cutlery and the glasses. Jace glanced at him in irritation, before heading to the kitchen. He dumped the plates into the sink and turned the water on full power, effectively eliminating all possibility of conversation. He had hoped that Sebastian would've taken the hints, but he followed Jace into the kitchen and grabbed a dish towel. He grinned at Jace.

You wash, I'll dry he mouthed to Jace, still grinning. The darkness was much more prominent in his eyes now, and Jace shivered. He wasn't quite sure why, though.

They did exactly that; Jace washed, Sebastian dried. Every time Jace held out something to be dried, Sebastian would brush his fingers against Jace's, lingering for as long as he could. Jace felt like electric shocks were travelling up his arm every time this happened, but he couldn't decide whether that was good or bad. He didn't dare meet Sebastian's eyes, because the emotions he always saw there confused him. That described how he felt very aptly- confused.

When the last dish was done, Jace reached across and turned off the tap. In the sudden silence, his breathing seemed much too loud. And too fast.

When he could avoid it no longer, he turned to face Sebastian. Jace saw what he feared he would- the darkness and the curiosity that confused him so much he felt tongue-tied.

"Thanks for the help," Jace told him gruffly.

"I thought you didn't want my help?" Sebastian said, cocking his head to the side and smiling wryly. He took an almost unnoticeable step towards Jace, who only now realised that he was cornered, trapped by the wall and Sebastian's approach.

"I don't. I mean I didn't. But you helped anyway, so, thanks." Jace shrugged, hoping beyond hope that he appeared nonchalant. Judging by the way Sebastian grinned wickedly, Jace didn't think he did all that well.

Sebastian moved closer. And closer, and closer, until the two boys were separated by only a thin margin of air. Jace's heart was thumping wildly. This close, he could read the black eyes more clearly. The darkness was much more intense, and Jace caught his breath when he realised what it was.

Lust. Just raw, shameless lust.

Jace tried to dart away, but Sebastian was too quick. He grabbed his wrist and pinned it against the wall above Jace's head. He did the same with the other. They were both breathing heavy now.

"You don't seriously think I'll let you go now that I've got you here. Do you, Jace?" Sebastian let out a breathy laugh that caressed Jace's face. Jace couldn't find his voice. The short distance that had been between them before was gone. Sebastian pressed his body so hard against Jace that it was painful. In a bad way, yes, but also in a good way. A very good way.

Sebastian leant his face towards Jace's, keeping eye contact the whole time. He brushed his lips so lightly against the other boy's that Jace let out a faint whimper of longing. He moved his mouth to Jace's neck, and Sebastian felt his blood pounding through his veins. He smiled, knowing he was the one that was causing it.

"What the fuck are you doing, Verlac?" Jace managed to hiss out between his teeth. Gathering his strength, Jace shoved Sebastian away as hard as he could manage. The black haired boy stumbled back a few steps, genuine shock flitting across his features, before he managed to compose himself. He smirked.

"Well really, Morgenstern, I thought I made my intentions pretty clear." Sebastian licked his lips, relishing in the lingering taste of Jace's skin. He reached out his hand to touch Jace's arm, but the latter jerked away. "Tell me you didn't like that, Jace."

"Like it?" Jace's head was spinning. "I..." He what? Of course he didn't like it! "No, as a matter of fact, I did not like that."

"Really?" Sebastian said thoughtfully, still smirking. "Then you won't mind swearing it, then, will you?"

Jace blanched. He opened his mouth, but the words didn't come out. He couldn't swear it. But that must mean he was lying. Which he wasn't. Was he? "I swear on the Angel, I- that I..."

"Jace! Jace, are you there?" Isabelle's voice wafted through the air, alarmingly close by. Jace pushed past Sebastian, who remained silent, and towards Izzy. His heart was beating much too fast.

"Jace! The Gard was so awesome!" Max was grinning widely as he lied. Isabelle winked at him. Then she frowned.

"Are you alright?"

"Yes! Yeah, I'm fine. Why?" Jace prayed Izzy would drop it.

"You don't look fine," Isabelle said, looking unconvinced. Her eyes slid behind him, and narrowed in suspicion. Jace followed her gaze to see that Sebastian had chosen this moment to sidle back into the room. Their eyes met, and Sebastian's sparked with black amusement, before raking up and down Jace's body once. Jace turned back to Izzy hurriedly, hoping to end the exchange before his blush became too noticeable. Jace was not an easy blusher, and that would surely raise some questions.

"You were saying?" Jace said, managing to pull off a bored tone. Isabelle raised her eyebrows.

"Nothing. Come on, Max, we need to finish these sweets before Mom gets back, or she'll kill us." So Jace had been right about the trip to the sweet shop. He glanced at the paper bag held tightly in Max's small hand and reluctantly let a smile curve his lips. It vanished when Izzy and Max left the room.

Jace heard Sebastian start to speak, but he strode out of the room without looking back, before Sebastian could even finish the first word. Jace shut the door behind him with a snap, trying not to sprint for his room.