A/N: Finally a new chapter :D You have no idea how long I´ve been writing on this. I really want to accommodate your requests and AKA Annabeth wanted Magnus to be jealous of Jace :D. I think Magnus is already over the Alec/Jace thing, so I wanted to make a joky chapter. I´m not very pleased with it but after so many tries I just decided to post it. So here you go.

It had happened gradually.
Alec would spend a whole date long with texting Jace.
Alec would come home later after a training session with Jace.
He would come home later after having dinner with Jace.
He would not come home at all after a hunt with Jace.
He would cancel a date after an evening with Jace.

Magnus was annoyed.
Of course he understood that Alec wanted to spend time with his family, and he more than approved of it. But if it was going so far that Jace would steal away his time with Alec, he wasn´t understanding at all.

But Magnus was mature. So he would sort things out in a mature way.„Stop hanging around with Alexander!"

Jace looked up at him, his amber eyes staring at him dumbfounded.
„What?" he said.
Magnus´ look was unyielding. „You´re starting to claim Alec for yourself and I don´t like it. So stop."

Jace blinked. „Claim?" he said. „I don´t cl-"
„Oh yes, you do. You´re a real cock-block, and you should know how frustrating that is. Oh, don´t look at me like this, I can imagine how determined Jocelyn can be if she doesn´t want her little daughter to get it on."
„Touché", said Jace, smirking. „But don´t you think it´s Alec´s choice? If he rather wants to spend time with me, let him. It just proves what a nice taste he has."
Magnus narrowed his eyes. He tried really hard to like Jace, but sometimes it was just not possible. „He chose me over you remember?" he said.
Jace raised an eyebrow. „Really? Or were you just the second choice? Maybe he already regrets it."
Magnus had to grit his teeth to stop himself from slapping him. He wasn´t so insecure that he actually thought Alec still had feelings for his parabatai. That was long over. It was the Herondale boy himself who made him furious. And maybe the glass of fairy wine he had drunk.

„Don´t make me angry, Herondale. Just don´t monopolize him for you and we´re fine."

Jace gave a laugh. He wanted to give a smart retort, but at that moment Alec and Clary appeared in front of their table at Taki´s. Jace´s face lit up. „Alec! Come on, bro, sit down next to me."
Alec shot Clary a short look and shrugged as he saw she had already flung herself next to Magnus.
„Oh, you brought the nachos! Just for me? Alec, you´re such a sweetheart." Jace said and ignored Magnus´ glare.

Alec scowled at him. „You said you´d kill someone if you didn´t get nachos soon. And these aren´t only for you."

Magnus grinned. To his sorrow, Jace wasn´t willing to give up annoying him yet. „Of course, of course. You bought ´em, you´ll get ´em. Here." He took a nacho and put it between Alec´s lips, practically feeding him. It might have been sexy if not for the fact that Jace was not Magnus.
Alec was completely startled at the gesture. He looked uncomfortable and tried to ignore Jace´s stare by looking at the table. Clary and Magnus exchanged a look in that she tried to raise only one eyebrow but failed miserably.

„So, Alec." Jace started again. „Imagine a scenario where Magnus and I are in danger. Let´s say, we´re hanging from a cliff and we can barely hold on. You only have time to save one of us. Who would you save?"

At that Magnus leaned forward, trying to read Alec´s face. Which didn´t give much away except that he was equally confused and irritated.
„Why would you hang from a cliff? Which cliff anyway and where?" he asked.
„That doesn´t matter. Just answer the question already." Magnus urged.
Alec gulped. „That doesn´t even make sense. Why can I save only one of you? I´d just pull up both of you." he narrowed his eyes. „Or even better: What about you save yourself? Jace, your strong and smart enough to get out of this situation alone and Magnus, you have your magic. You can conjure up a rope or something you can climb up at."

Jace gave Magnus a superior smile as if that meant he had won. „He said I´m smart and strong, Magnus. Did he say it about you too?"
„No." Magnus said. „Because I don´t need to hear it. I already know how great I am. And Alec knows it too, right darling?" Alec blinked and began to splutter something inaudible. Clearly, he had no idea what was going on between the two. Magnus almost felt sorry for him. Almost. He was still too angry to pity him.

„Whatever." said Jace. „So, in a universe in that I´m not strong and smart – if one even exists – and Magnus doesn´t have his magic, who would you save?"
Alec looked from Magnus to Jace and sighed. „Okay. You know what I would do?" Magnus and Jace stared at him curiously.
„I´d sit down at the edge of the cliff and do nothing. Because right now I don´t care if you fall from a cliff or not. I´d just like to eat my nachos. Seriously, what the hell is wrong with you two?"

Jace thought for a minute. „Okay, but in our scenario you are not angry with me. So who would you rescue?" Jace pressed him on. Alec turned his head slowly towards his brother and gave him his typical wtf-look.

„Hey, do you wanna know who I´d save?" Clary asked.

„No!" The three said in unison and Clary pouted.

„Alec?" Magnus eyed him expectantly.
Alec sighed. „Okay, you know damn right that I´m not gonna answer this idiotic question, so can you please tell me what the hell is going on with you?"

Jace grabbed some nachos, put them into his mouth and grinned. „Magnus thinks I want to steal you away from him. And I said you just like me more than him. Which is the only sane thing to do."

Alec opened his mouth and closed it again, unable to find words. He shook his head.
„Why does it always have to be me who suffers most when you two have a fight?"

Magnus and Jace shared a look and grinned. „Because we love you." they said in unison and Alec groaned, dropping his head on the table.

And the moral of the story...

… If your shadowhunter doesn´t spend enough time with you, blame his parabatai.
He´s going to annoy him so that he gets fed up with him.
Also, make him feel guilty. Then he has to make it up to you by –

„Magnus? What are you writing here?" Alec leaned over his shoulder to get a glimpse of what Magnus was doing.
They were back at Magnus´ loft after eating at Taki´s and Alec had agreed to stay at least three days without any major disruptions. So Magnus had pretty much got what he wanted.

„Uh, nothing." Magnus said, putting his little note away. Before Alec could say anything to object, he reached behind him and snatched his shoulder to pull him over to the other side of the couch. To his side. Alec was lying on top of him now. It was just the position he wanted him to be in.

„Nice move, Bane." Alec said in a low voice. Magnus grinned. „I know." he said and grabbed the hem of Alec´s shirt to pull him in for a kiss.