Even love you, angel will kill you for everyone. But demon will kill everyone for you.
You have a guardian demon. Yes, not a guardian angel, she is a guardian demon. And she is not just a guardian demon, she is the youngest queen of hell. Not like an angel, an angel would kind and love you all time but kill you if it is for the majority, a demon would cruel and stoic with you almost time but kind and be the best shield for you in your worst time. Your guardian demon's name is Rwas and she is your lover too. You are the first time of a 252 years old demon when you was 13. And up to now is 3 years. In that 3 years, 'til the first time, 'sex' is one of must-do action of your and her life. She had promised that when you 18, she'll make you never older and never die, always here for her. Don't be sad if she says she doesn't love you, she is just too arrogant to says that three words. She and everything of you and her are your biggest secret.
The night is wear now. After a long day, you back to your room. Your lover was in it, floating in the air. As usual, she was waiting you for a long time.
"You back later than usual about 12 minutes." She glares. Her feet slowly lower the floor.
"I think I have to investigate by myself if you don't give me a fucking reasonable explanation, babe."
She pins you onto bed, gets on top you, pins you beneath her, grabs your chin.
"Are you tired now? Are you ready now? Because I'm really horny, babe."