The ideas for this story just popped into my head. But the thing that makes this FF a little different is that the readers get to help me decide what happens. A lot of my ideas will be at the end of the chapters and you get to vote in reviews for if you want it to happen or not. This is Post COG and the gang has been back in NYC for about half a year.

Clary's head hit the wall with a hard thump. Again. "Damn, Iz, can you take it easy on the head?" Isabelle ignored Clary's mumbled curses and proceeded to flip her on her back.

The two girls had been sparring on the mats in the training room for over an hour and Isabelle was not in the mood for going easy on Clary. Clary did what she could but after a while, she realized Isabelle was taking her frustrations out. So Clary let herself become her punching bag, knowing that she needed the training and that a pissed Isabelle was not fun to be around. But after the fifth time her head hit the wall, Clary was beyond angry.

Squaring her small shoulders, she thrusted her knee into Isabelle's stomach, knocking the breath out of her. Clary took the opportunity to reverse their positions, so that she was now straddling Izzy.

"Okay," Clary said, her breath coming out of her in deep pants, "what" pant "is the matter" pant "with you." Isabelle pushed her hips up, trying unsuccessfully to wiggle her way out. After a couple more useless tries, she gave up with a sigh and looked up at the smaller girl.

Clary had a black eye, a small cut over her right eyebrow and her hair looked like something had taken permanent residence in it. But the most surprising thing was the look on her face. Her mouth and nose were scrunched up into a scowl and she had a murderous glint in her green eyes.

Isabelle, having fought enough with Clary to know she could cause some damage, decided not to push her luck anymore. With a deep sigh, she answered the question.

"It's not personal, Clary, I'm just frustrated." There's a surprise, Clary thought sarcastically. "I've been in this damn place for a week straight and Simon hasn't called. So I've got cabin fever and a serious case of the blue balls."

Clary, forgetting to be mad, snorted with laughter. "Isabelle, I'm pretty sure you have to actually have balls to get that. And last thing I heard, you don't."

Izzy rolled her eyes and wiggled again. Clary stood up and put a hand down to help her up. Isabelle stood up to her full height with that grace that Clary envied but rarely gave a thought to anymore. After a nod of thanks from Isabelle, Clary turned to walk out, her thoughts on a hot shower and a much needed iratze, when she noticed Jace leaning against the doorway.

He was standing with his arms folded and his ankles crossed, wearing a smirk on his handsome face. His blonde hair was in it's usual disarray of curls and his golden eyes were raking Clary's form. Only then did she remember what she was wearing and she smirked back at him, knowing her clothes would get him fidgety. She was wearing a green sports bra and tiny black shorts that barely covered the intended places. Pretty much all of her pale skin was on display to him and she caught his eyes following the curves of her waist and hips.

Since returning from Alicante, Clary had been training hard and her body had changed a lot. Her tiny frame now had the curves of a woman and her breasts and butt had filled out simply from her growing older.

These things had not escaped Jace's attention.

Now he approached her slowly, his face nervous-looking as his eyes followed a drop of sweat as it slid down her chest. Clary's smirk became a full blown grin as she watched his adjust his pants before coming to a standstill in front of her.

"Um…Clary? What exactly are you wearing?" He used his hand to gesture to her clothes. It was definitely not her usual attire for training but it was getting hot and it was only Isabelle. Usually her training was with Alec or Jace, so she made a bigger effort to cover up.

But now, seeing as how hot and bothered the outfit made Jace, she was willing to rethink that.

She decided to play with him a bit. "What, this?" She looked down at herself and slowly adjusted her shorts a bit. "Oh I found them in a drawer and decided to give them a shot. You don't like them?" Clary feigned hurt and he narrowed his eyes at her.

Not to be beaten, Jace's hands shot out and grabbed Clary's hips, pulling her flush against him and captured her mouth with his. Since their return to New York, Jace had made careful lines in their physical relationship. Clary knew he wanted more and she sure as hell did, but Jace was afraid.

She had asked him only once but his response was enough that she didn't ask again. He had said "I want our first time to be something to remember, Clary. Not in the heat of the moment but something real and special. It won't be my first time but it will be my last first time. I love you more than anything and when that happens, I want you to know it. So please wait."

And so she had. But the thing was, she did know he loved her. She felt it in every look, every touch, kiss. In the way his hand found hers almost absently. In the way he always stood slightly in front of her, as if to shield her from something. In the way he held her like she would break and how he pulls her toward him even in sleep. Clary knew, and he knew she knew. But they still kept to heated make-out sessions. But for now, that was okay.

Like now. Jace's lips tugged on hers and she opened her mouth to grant him access. His tongue moved with hers softly while his hands rubbed tiny circles on her waist. Only when they heard someone clear their throat did they break apart, but Jace's hands didn't leave her hips and Clary's arms stayed locked around his neck.

They turned to find Izzy standing in the middle of the mat with her hands on her cocked hips and tapping a booted foot. She rolled her eyes at the couple's heavy breathing and walked past them, snatching Clary and pulling her after her. "At least someone's getting some around here," she mumbled. All they heard was Jace's chuckle and mumbled 'cockblocker' before they disappeared out the door.

Clary protested as she was dragged through the Institute, but soon the reason for it dawned on her. It was Friday. And Clary had promised that Isabelle could take her shopping before they went on a routine sweep at Pandemonium tonight.

"Izzy, I really don't need new clothes!"

"Clary, you're not getting out of this one, so don't even try. Now you have ten minutes to clean up and change before I drag you out of here. And you know I will." She proceeded to push Clary into her room and waited.

*

Four hours later, $300, and six outfits later, Clary stood in Isabelle's room, looking at herself in the mirror as Izzy zipped up her boots. She was stuck between being horrified, thinking she looked like a prostitute, and thinking she looked damn good. Clary was wearing an extremely short jean skirt, an off the shoulder black top that hung loose but hugged her tiny hips, and a pair of red pumps that she was proud to say she could walk in without killing herself.

Isabelle was…well Isabelle. She was wearing a black dress that fit her like a second skin. It was strapless but had two pieces of lace that wrapped around her upper arm and slits from the bust-line to waist and at the hem. Her long legs were made impossibly longer in a pair of knee-high boots that she was busy shoving blades down at the moment.

Both girls had left their hair down and were sporting smokey but minimal makeup.

Izzy wrapped her whip around her arm, the color contrasting with her black dress making it look like a purposeful accessory, and Clary strapped two thigh sheaths under her skirt for her seraph blades. All that was left was Clary's dagger, which she had figured out was her weapon of choice, and now she put one down her shirt, letting the tip rest on the under wire of her bra.

With one more fluff of her full curls and a small shrug, Clary walked through the door that Isabelle had already disappeared through.

Voices floated up the hall as Clary made her way to the elevator where she knew the others would be waiting. The clack of her stiletto heels made her conscious of what she was wearing and she suddenly worry about what Jace would think about her clothes.

But when she walked around the corner, she knew her worries were needless. Everyone stopped talking mid-sentence and stared. Izzy was grinning knowingly, Alec had his mouth open which Magnus closed, Simon's eyebrows were in his hairline…then there was Jace.

Jace's mouth was completely slack as he looked her over shamelessly. His eyes got a little wider as he started at her makeup and almost popped out when he reached her shoes. Jace had a thing for Clary in heels. Something about her tiny frame looking badass in something intimidating like heels. Whatever.

They all stood in silence for a moment before Jace suddenly spun around and hit the button to open the elevator. Clary shot a questioning glance at Isabelle who shrugged and followed everyone else into the lift. Clary got in last and moved to the back in front of Jace who was staring straight ahead, avoiding her gaze.

Clary reveled in her disappointment as everyone exited the elevator and walked out the Institute's front door into the warm NY night. Jace didn't like the clothes. She thought he did at first, but why did he not say anything? Why did he-

Her thoughts were cut off as a pair of warm hands wrapped around her waist from behind and pulled her into a familiar chest. Jace's arms wrapped completely around her and he rested his head on her shoulder, not saying anything. Clary put her arms around his neck and moved with his slight swaying movement.

She didn't ask any questions, just soaked up everything that was Jace, and how she felt so small and safe when he held her, like the rest of the world didn't matter or even exist.

"You look beautiful and much, much too tempting for your own good." His low voice sent shivers down Clary's spine and Jace's arms tightened in response. "But I have a question." When he got a questioning silence, he continued. "Where are your weapons? You better not be going out with out them-"

Clary, wanting to tease him, moved his hand slowly down her hip, over her thigh, and back up under her skirt until his fingers reached her seraph blades. His breathing hitched and he hissed out a breath when she moved his hand back to her hip. He started kissing hungrily down her exposed neck mumbling something about 'too tiny to tease' before a sudden thought struck him.

"Wait. What about your dagger? I have yet to see you without that thing."

Clary smiled to herself as she imagined what Jace's reaction would be if she moved his hand to her cleavage where her dagger rested by her heart. Pulling away from him and turning, she grinned devilishly up at his flustered look.

"Oh, sweetie," Clary said sarcastically, relishing in the fact that she could make cocky Jace so flustered, "don't you wish you knew." With one last wink and a swish of her hips, she disappeared out the door.

Let me know what you think and tell me if you want a full out lemon or just a taste.

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