Ever since they'd made a permanent home on Earth, Mobius wanted to participate in holiday traditions.
He wasn't sure why he was so enthusiastic about it, maybe because he couldn't remember ever celebrating before, or because he now had not one but two people who loved him, and that he loved in return. Either way, he wanted to experience every festivity possible with his new family.
Loki and Sylvie were more than happy to indulge their mortal's whims. Some of the celebrations had been pretty fun. Loki had always been fond of Halloween, and Sylvie had taken a liking to Thanksgiving (watching her devour an entire pumpkin pie was an event within itself). But now they were coming upon what Mobius dubbed 'the holiday to end all holidays', Christmas. The former agent had strung lights up everywhere, even wrapping them around the jet ski Sylvie had gotten him. They decorated a tree, built snowmen, drank hot chocolate, and experimented with several different flavors of candy canes.
Sitting on a random old man's lap was out of the question though, as his two jealous Góð's wouldn't allow it. But Mobius was more than happy to sit on Loki's lap while Sylvie sat on his.
He was even more thrilled with the extremely revealing Santa costumes the two wore.
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"What on earth are those?"
"I'm.....not completely sure."
Loki and Sylvie were trying to make sense of the strange garments lying across the bed. There were three of them, each in a mix-matched pattern of stripes and polka-dots...
And Glitter....sooooo much glitter.
"That looks like an amalgamation of the most unholy creatures imaginable....we should burn it."
"Now wait a minute Sylvie-"
Before he could stop it, Sylvie lit the clothes on fire with her magic, and consequently engulfed the bed right along with it.
"Shit! That wasn't supposed to happen!"
"You set it on fire! What part of that didn't you expect?!"
"The part where it took the bed with it obviously," she growled before conjuring up a fire extinguisher and tossing it at him," Now sod off and help me put this out!"
"Hey guys, did you find the...WHAT THE HECK HAPPENED HERE?!"
Mobius walked in to find the bed scorched black and both of his partners covered in foam.
"Uhm...well you see Mobius, there was a bit of a... "
"Oh no, the pajamas! They're ruined!"
"That's what those things were?"
"Of course that's what they were," Mobius said with a huff," It's a Christmas tradition to do a family photo in matching Pj's!"
Sylvie and Loki looked at each other then back at their mortal.
"You.....you consider us family?"
"Well of course I do! I love you, both of you, more than anything else in this universe, and that's all you need to make a family really."
Before he knew it, Mobius was being hugged from both sides. While they were entangled, a wash of green light bathed over them, leaving them all in matching dark-green pajamas.
Loki pulled away and grabbed the agent by one hand while Sylvie grabbed the other.
"Let's go take that family photo now."
***************
Out of all the holiday traditions, they decided the family portrait was the best one and vowed to do it every year. Two Christmases later, that portrait got a little bigger as they welcomed their daughter Áina into the world.
They couldn't wait to share all of their experiences with the newest member of their little family.