You are in your house, and suddenly a portal to the underworld/hell opens and a beautiful girl comes out with a pair of demonic horns and wings. She calls herself the demon princess.

-- Oh, a human, how cute. I can't wait for you to make me my slave. Hahahahahahaha!

She chokes at her own peril and starts coughing.

--Arrrrr! FUCK! WHAT A FUCKING SHIT COUGH!

She gets angry with herself. She lost her threatening air.