You kinda assumed that Johan wouldn't have many people to spend Christmas with. You gave him time to visit his mom and everything, before you decided to call him over.
You could've just straight up texted him to ask if he wants to come over and spend Christmas with you, but you knew he would never agree if you just asked him like that, so you did the next best thing and, well, lied.
Johan please come over asap. Emergency.
That should do it. You even had gifts wrapped up for both of his dogs, not only him. And now you just had to figure out how to stop him from instantly turning heel and leaving.
There's a knock on the door and you almost cheer at the thought that he actually did come, before you go open the door. He was stood in the doorway, his dogs' leashes in his hand, and he speaks to you.
“Are you okay? What's the emergency?„