There is someone beside you in the bed

As you're about to take off the covers, you discover something you failed to notice. There is someone next to you, in the bed. It's hard to see in the darkness of the room, but you can clearly see a woman in your bed... You can see her back and long light hued hairs and her small body. You don't remember being with someone... but you don't remember much about yourself, so maybe ? It'll be awkward if she wakes up. How will you call her ? You don't even know who she is and what she is to you. But as you try to remember something, anything about her, or you, light slowly illuminate the room from the window. The day is rising, and with that you can better see her.

With the light of this new day, you can see her ear, almost seven or eight inches long and pointy. Her hairs are also shining like they are made of silver. She's an elf... most probably... you're pretty sure that's not normal, you remember a world, a modern world with no magic or anything surnatural... What the heck happened ?

You slowly push the sheets to reveal your body...