I updated quickly! This chapter is semi-long, so there's that. This chapter came pretty easily. Hope you like it! R&R!

Disclaimer: I do not own TMI. But these cute sibling moments come from my brain, because Cassie Clare doesn't seem to think Clary should have a nice brother. *glares*

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Clary POV

After ranting to Jon, I thought that him being nice was going to be a big joke, but it wasn't. He looked at me like he wanted to help. Like he really cared. I haven't seen that look from anyone but Izzy and Simon since my mom died. It's nice to see that look in eyes identical to hers.

"Oh, Clary. Come here. I'm going to give you a hug, not strangle you," Jon said as he opened his arms.

I laughed at him, and hugged him. "Why would I think you would strangle me? If anything Seb would do that. Or Simon or Izzy, in a joking way." He laughs at me, and soon we are both rolling on the floor, practically crying.

"Okay, so we should do 20 questions or something, so we can get to know each other better," I tell Jon, seeing as I am the first to recover.

"Sure." He says after recovering, wiping tears from his eyes. "You can go first."

"How old were you when you had your first real kiss? Not like some elementary thing, but, an actual kiss."

"I was, uh, 13, I think," he says with a small laugh, but goes on anyway. "When was yours, little sis, and who was it with?" I feel happy with him calling me little sis in that way. Seb has said it before in a menacing way.

"Well, I was 14, and it was a weird, awkward thing I had going on with Simon. It lasted about 3 weeks, and we realized how weird it was, and broke it off. We vowed to never speak of it again." I shiver at the memory. "And, by the way, that counts as two questions. My turn!" I grin happily at him, and he just sticks his tongue out at me.

We continue on playing 20 questions, and I actually learn a lot about my older brother. He has only had 3 girlfriends, while Seb has never had an actual girlfriend, only hook ups. His favorite color is green, and he is a fanboy in disguise.

This last thing I learned about him brought us to our current conversation about Harry Potter.

*might contain Harry Potter spoilers*

"Umbridge was terrible! You have to admit she was the only person you wanted dead more than Voldemort! She's why I hate the color pink! You just can't trust it!" I tell Jon.

"I know! She was awful! I mean, who makes someone write I must not tell lies when they were telling them the truth! In his own blood! He had two scars in year five! The lightning bolt, and those dreaded words!"

"And some of her punishments for Harry made him miss other assignments, or made him too tired to really participate in school! Umbridge even made him miss some Quidditch games!" I say, deepening my point.

"Yeah! Even You-Know-Who cared about Harry's education! He always waited until the end of the school year to try and kill him!" I find this newfound Jon more enjoying. It feels like I actually have a sibling. And one that will fangirl/fanboy with me like Simon and Izzy normally do.

"I am so glad you agree with me on this! Some people don't understand how terrible that pink-demon is." I huff, and Jon starts laughing. "What's so funny?" I demand.

"Well, it's just that I've had some of these views on Harry Potter for a while. But, unfortunately, none of my friends have read and/or watched Harry Potter. I don't think any of them even know I am a Potterhead. Seb has no clue." Jon says. "It's just, uh, nice to have someone to er, fanboy with?" He says it like a question, as if wondering if used the term correctly. I just start laughing at him and nod.

"I know you have seen the different fandom posters I have in my room. You could have used them as an excuse to talk to me."

"I considered it, I really did. I just thought that if I mentioned them, you would probably think I was making fun of you. There was also the chance that Sebastian would hear me say it, and never let me live it down. I mean, he's my brother and I love him, but just not all the time." Jon says hesitantly. It was probably the first time he has ever voiced these thoughts.

"Don't worry, I won't tell him you said that. Or about this HP conversation." He just nods, and we sit there in silence.

"You know, that's why I never let you clean the room off of my bedroom, and why I never let anyone in it." At first, I am confused as to what he is talking about, but then I remember. All of the bedrooms in this house, (read: mansion) have a side room on them. Valentine has his man-cave there, with a large flat screen TV, his artillery, and sports posters. Seb's is where his and Jon's video game stuff is.

And then there was Jon's, the mystery room.

"So you're saying that that room is where you have your fandom stuff?" I ask him, disbelief flooding my voice.

"Well, yeah." Jon looks relieved. "That's something I have never told anyone, feel privileged."

"I feel privileged." I stare at him with a blank face. And, before we know it, we are laughing our heads off again.

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"So, what do you want for dinner?" I ask Jon, my brother. Sebastian called to say he was gone for the night. That's all he said. He didn't tell Jon why or what he was doing or anything. Just that. Honestly, I don't care, but it looks like it is bugging Jon a little bit. He still cares for him, because, you know, they are brothers, and have known each other all their lives.

"You don't have to cook anything, Clare. Seb's not here, and neither is Da—er Valentine?" He gives me a weird look, and I just shake my head. He can call him Dad, I just never will. "Anyways, you don't have to cook. I was planning on ordering pizza or something." He goes to grab the phone, but I run and stop him.

"No! Don't call for pizza! They may not be here, but somehow they will know if I don't cook. Valentine will kill me if I wouldn't do something for you!" I wasn't kidding about the whole killing thing, he probably would.

"Clare, remember? It's your day off. Usually we just order a pizza if it's your day off anyway. I'll just make sure it's not obvious you eat any of said pizza." He just smirks at me, and winks before picking up his phone. "So, is a large pepperoni good with you?" I nod with a smile.

"As long as there is cheesy bread to go with it!"

"What else would you get to go with pizza? Now be quiet, it's ringing." I just roll my eyes, savoring the moments it's just me an Jon. I, somewhat selfishly, hope that he stays by my side in school, and once Sebastian and Valentine are back.

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Sebastian POV

What is he doing?! I think to myself while watching the security cameras Dad set up in the house. I thought Jon knew that we weren't supposed to socialize with the stupid, stubborn, redhead, and from here, it's looks as if they are best friends. I really wish I had sound, just to see what they were laughing about.

"What are you doing, Seb?" Jace calls from downstairs to where I am currently sitting in his room. "I thought we were gonna go to a club!"

"Yeah, yeah, give me a second. I needed to check something!" I stuff my phone into my pocket, and run downstairs. It was his idea to go out. He claimed he needed to forget about something, though I'm pretty sure it's someone, and I'm always up for a club with girls in tight dresses.

He heads out the door, and I check the screen one more time. As I see them talking in the living room, all I can hope is that Jon is just trying to get on her good side so she is more willing to be our maid. God I hope so.

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Don't you guys just love the nice sibling moments! Sorry there isn't a lot in this chapter besides Jon/Clary sibling fluff, but I wanted them to start their sibling-ness here! Seb at the end is kinda scary, and it's obvious he doesn't think Jon should act as a brother towards their sister! I just hate Seb in the books, I don't think I could ever make him a nice person in a fic...

Oh, and their conversation about Umbridge is actually inspired by a conversation I had with one of my (fanboy!) friends. We had an entire discussion about how terrible she was one day.

And to the people who guessed for the thing in the last chapter, the correct answer will come soon! You know if you got close, or were correct.

Sorry this A/N is really long! Do you guys even read this? If you do, include the word angel in your review, though make it subtle.

~TessaGraceHerondale