This was a request by Pyro Band Ninja.
What if Maryse came to check on Jace while they were at the Seelie Court and discovered Alec?
"I'm so bored!"
Alec crawled over to the couch Magnus was lounging in, leaning over on his stomach. "Magnus, you don't have anything to do here!" he whined again.
"Well, you haven't wanted to do anything I have here, my little Nephilim friend," the warlock crooned, running a hand through Alec's hair.
"Yeah, well, I'm not really the type of Shadowhunter that enjoys being dressed up by a fashion-crazed warlock and practically choked with glitter," Alec said.
"You never know," Magnus smirked. "Maybe later, though." He paused for a moment. "When did your little Shadowhunter friends say they were returning?"
"When Jace had what he wanted and whatever else they wanted to do," Alec muttered, waving a hand to dismiss it. "I'm here because…wait. Why am I here again?"
Magnus grinned. "Because Jace needed to leave and I needed someone to stay here with me because I get lonely," he pouted. "And because Jace owed me a fee for healing him and I get you until he repays me."
"I'm stuck here forever," the Shadowhunter muttered.
"Well, I know something we can do that we'll both enjoy," Magnus said, finally gaining all of Alec's attention.
He didn't get a chance to ask what it was, though, before the warlock firmly locked their lips together, bringing him up to lay on top of him on the couch. It wasn't until the door slammed shut before they finally broke apart, both panting lightly from the lack of oxygen.
Maryse Lightwood stood in the doorway, her arms crossed and a glare on her face. "I thought Jace was here," she practically growled, glaring at Magnus. "Why is my son here?"
"I am so dead," Alec whispered, Magnus just grinning. He was gonna enjoy this.
***END***
It was short, I know, but I had an idea and was too tired to expand on it. I have another idea, and it should be out very soon and I'm pretty sure ya'll will love it.