After a little while, their (quite innocent) kissing session ended and they were cuddling on the couch, Alec's head resting on Magnus' shoulder as they absently watched the fire burn in the hearth.

"It's too quiet." Alec commented all of a sudden.

"Nice isn't it?" His Warlock said pressing a kiss on his hair.

"Yeah…" He paused. "Mags? Where are the kids?" Alec asked not really worried, knowing Magnus would never be careless with them, no matter what.

He chuckled tracing a rune on Alec's arm. "With Izzy and Simon. I believe he's showing them a new videogame. He also assured me they were going to order take out for dinner, so they are completely safe."

Alec laughed at the jab on his little sister's cooking. "Good. They're staying there for the night right?* We should call them to say goodnight…"

Magnus smiled fondly at him. "You're so cute."

"Shut up." Alec blushed mock-punching his arm. "As if you wouldn't call. And I haven't talked to them today!"

"Such a doting father." Magnus teased conjuring the phone.

"Are you jealous of our children?" The Shadowhunter smirked at him.

"Don't be ridiculous." He scoffed.

Alec chuckled. "And don't pretend for a moment to be better than me! Last time you were the one who couldn't wait to speak to them!"

"You got me there. Oh well. I'll go first!" He grinned.

"Hey!" He exclaimed but Magnus had already dialled the number and was waiting for them to pick up. Alec decided it'd be too childish to wrestle the phone off his hands now. He'd get back at him later.

"Hello Samuel." Magnus said pleasantly, winking at Alec, making him snicker because of the false name. "How are you guys doing? Our little angels aren't causing you trouble, are they?"

"Who's a doting father now?" Alec mouthed at him leaning closer to listen at the phone, and Magnus stuck his tongue out to him, mouthing back. "Who's jealous now?"

"Everything's fine Magnus don't worry." Simon answered missing their hushed discussion. "We had pizza and will go to sleep soon."

"Don't let them watch anything scary on TV!" Alec raised his voice so Simon could hear and Magnus raised an eyebrow at him. "They're still children!" He exclaimed answering Magnus' questioning stare.

"Honey, you're such a worry wart, seriously. They have a father that is half demon, and another who kills demons for a living. Do you seriously think they'd be scared?"

"They. Are. Just. Children." Alec said firmly.

"Fine. You win." Magnus sighed. "You heard him Sheldon. No scary stuff."

"Don't worry." Simon who had been waiting patiently said. "We just saw Star Wars."

"Don't make my kids nerds please." Magnus said.

"What's wrong with that?" Simon exclaimed and Magnus laughed.

"Just make sure to sleep soon." He said.

"Yeah, yeah, we know Magnus. It's not the first time. Wait." He said, knowing already what the Warlock was going to ask next, and then shouted. "Rafael! Max!"

They heard running and then, "PAPA!" Their younger son squealed delighted on the phone.

"Hey baby." Magnus said beaming, and Alec leaned even closer to listen better. "Are you having fun?"

"Yeah!" The little Warlock exclaimed. "Lots of fun! Uncle Simon showed us a game with a magic key!"

"And a duck doing magic like papa and Max!" Rafael added too, and their parents chuckled, their heads leaning together, both listening.

"Papa, papa!" Max said again. "Can you make thunders too? And ice?"

Magnus looked at Alec just as Alec looked at him, raising an eyebrow. His Nephilim shook his head, his eyes widening warningly, mouthing, "Don't."

Magnus' eyes shone mischievously and he grinned. "Of course I can sweetheart!" He said and Alec face-palmed muttering, "Dammit Magnus…"

His Warlock covered the phone and whispered at him, smirking. "Did you seriously think I'd let our son believe that Donald Duck is a better Warlock than his father?"

"Who?" Alec asked, whispering too and Magnus just laughed. "Don't laugh at me!" He hissed, only making Magnus laugh harder.

"Will you show me tomorrow papa?" Max asked excited, oblivious to his parents' whispered conversation. "I want to do it too!"

"Look what you've done now!" Alec hissed again.

"Shush." Magnus whispered kissing his cheek. "Of course baby." He told Max. "But first, we must learn some other kind of special magic, okay?"

"Okay!" The baby Warlock chirped.

"See?" Magnus whispered giving Alec a lopsided smile. "Easy~"

The Nephilim shook his head in exasperation. "Good job Mags. Well done." He mocked, patting his lover's head, smiling.

"Hey! Watch the hair Lightwood! And don't patronise me!" Magnus said louder, swatting his hand away. (Not that it was any use, his hair was already ruined by the make out session before, but he had been too busy to notice. Or care for that matter.)

"Are you guys fighting? Daddy?" Rafael's worried voice came through just before Alec burst out laughing at Magnus' antiques.

Magnus poked him in the ribs trying to suppress his own laughter and failing.

"We're not fighting baby, don't worry." Alec told their oldest son, poking Magnus back.

"They're fighting?" Max's shocked voice came through too.

"No." Rafael told him. "It's okay."

"Papaaaaaaaa! Daddyyyyy! Don't fight!" Max shouted on the phone.

"We're not, we're not." Magnus assured them too, smiling.

"Promise?"

"Promise." Magnus and Alec said simultaneously.

"Hey." Izzy suddenly came on the phone, taking it from the boys.

"Hey sis." Alec said. "What's up?"

"The hands of the clock. It's getting late. Wait a moment." She said before shouting. "Boys! Go with uncle Simon to get ready for bed."

"Yes aunt Izzy." The boys said at once not making any fuss.

"What did you do to our children?" Alec asked.

"What sorcery is this?" Magnus backed him up. "Why are they obeying you?"

"They are never that obedient with us!"

"Because you've spoiled them rotten that's why!" Izzy reprimanded them. "You two are too soft, they have you wrapped around their tiny fingers."

"Nonsense." Alec said.

"We're very strict."

"Yup."

"Tyrants."

"What he said."

"I swear, both of you are more childish than the kids."

"We're not!" They both exclaimed at once, then turned to look at each other surprised and burst out laughing.

"Are too." Izzy said, a smile in her voice rejoiced by hearing her brother and Magnus being so effortlessly happy. They really deserved it. "Anyway! C'mon now, time to say goodnight, it's getting late. And you two go to bed too, you have to wake up early tomorrow."

"So bossy…" Alec muttered, while Magnus said, "Of course we will." winking at Alec and earning a mock punch for it, and a hissed: "Not in front of my baby sister!"

Izzy either didn't notice the Warlock's tone or pretended not to. Probably the first, or else she would have said something.

"Okay then. See you tomorrow guys. Boys come say goodnight!" She called her nephews, her voice fond.

"I used to be her favourite…" Alec joked pouting.

"You're so cute when you're jealous." Magnus told him but before Alec could utter his comeback, Rafael spoke.

"Daddy?"

"Hey." Alec said smiling. "Ready for bed?"

"Yeah…" Rafael said.

"Is something wrong baby?" Alec asked concerned.

"No… I just…"

"What is it?" He said again glancing at Magnus worried.

"I didn't see you much today… I missed you."

Alec's face went immediately from worried to practically glowing, ecstatic with joy. "Do you want us to come get you?"

"By the Angel dad, I'm not a baby!" Rafael exclaimed, sounding as if he already regretted telling him. "I'll see you tomorrow morning."

"First thing." Alec said still beaming.

Magnus was looking at him talking to Rafael who he knew was blushing by now. Their baby Nephilim was much like his dad in that aspect. 'They are too adorable…' Magnus thought still staring at his beloved dreamily.

"What's daddy saying?" Max chirped curiously in the meantime, trying to take the phone from his big brother's hands and failing as Rafael raised it higher so he couldn't.

"He said goodnight and you missed it!" He teased.

"What? Nooooooo! Daddy don't go! Papa!" The toddler whined on the verge of tears while Rafael laughed taking pity on him and handing him the phone. "Daddy?" He asked again gripping it tightly. Rafael laughed more, tousling his hair.

"I'm here baby don't worry." Alec reassured him.

"Papa?"

"I'm here too sweetheart."

"I thought you left…"

"Never baby." Magnus reassured him.

"And we'll see you tomorrow, yes?" Alec crooned.

"Yes!" The little Warlock chirped, already cheered up.

"But now it's time for bed."

"Goodnight daddy." Both children said. "Goodnight papa."

"Sweet dreams."

"Sleep tight."

They said, finally managing to get off the phone. Alec could almost see Izzy shaking her head at them exasperated, but she really was no better than them and had no right to speak. Their kids had every Shadowhunter in the New York institute wrapped around their little fingers, not just their parents. No one could say no to them for long.

He turned to look at Magnus and noticed his Warlock was already staring at him fondly.

"Mags? What is it?"

"You have no idea how happy it makes me to see you happy." Magnus told him, the smile never leaving his face.

Alec smiled sweetly at him, pressing a chaste kiss on his lips. "Right back at you. It's Heaven on earth."

"Well, now that the kids are out of the way, I wonder what we could do…" Magnus mused wrapping an arm around his waist and pulling him close.

Alec laughed. "You're a demon."

"Guilty. Actually, just half, but you knew that when you agreed to live and adopt two kids with me."

"Oh shush." Alec chuckled, knowing it was safe to joke about that now that it no longer had any power to hurt Magnus. "You agreed too, knowing I was a Shadowhunter."

"Nobody's perfect babe."

"You're impossible."

"But you love me."

Alec smiled teasing. "Can you tell?"

"Darling, the whole world can tell."

The Shadowhunter laughed, then grabbed his shirt to pull him closer, and whisper before kissing him. "Good."

Magnus hummed, smiling against his lips as he kissed him back.

~o~

* I don't know if that is considered normal in other countries etc. but when I was a kid we used to spend days living with our grandparents sometimes, even when our parents weren't busy. (Just so we could spend more time together because they weren't living very near.) Admittedly, Izzy and Simon live very close, but my point is, it's fun for the kids, soooooo. I don't think it's weird.