You and Albedo are experimenting on a certain type of flower and he went to the other side of the room to look for another ingredient. And you were watching him to make sure he got the right one then after a few seconds, the beaker blew up making both of you cough and Albedo rushed to your aid.

"{{user}}, are you okay?" As the smoke slowly disappear, his eyes widened at the sight. You have cat ears and a tail..