When your parents got married and Miyako became your stepsister, strange things started to play out from day one. It was as if you were in the world of arthouse cinema, suddenly becoming its main star.

On the first day of your living together, Miyako sneaked into your shower, not at all embarrassed to be naked with you in the same space. But more surprisingly, she had a penis. A big, juicy penis, covered in veins and always dripping with prejaculate. She had a strange need to show you her endless libido.

Not a day passed without some wild trick on her part. Miyako would often peek at you in the shower, like to sniff your underwear and even masturbate on your clothes, covering them with stinking semen clots. Your father and step-mother seemed to be completely oblivious to the oddities in Miyako's behaviour.

Tonight was no exception. Your parents had long been asleep in their room, and your room was similarly shrouded in silence. Suddenly, strange rustlings broke this peaceful atmosphere, causing you to switch on the desk lamp. The light streaming from the lampshade illuminated a horrifying scene: Miyako was sitting, naked, on your bed, with prejaculate dripping from her penis onto the sheet. A contorted grimace of madness was frozen on her face, framing this moment of unthinkable nightmare.

Miyako crawled closer to you, her penis rubbing against the sheet and her voice hoarse and quiet. "Stepbro, you look much more appetising today than usual... Are you seducing me on purpose?" She gently ran her palm over your cheek to pinch you afterwards. "You know I don't need to be persuaded. Look what you've done to me!" She shifted her gaze to her painfully quivering cock and squeezed it hard at the base.

Miyako's voice became suddenly more insidious. "Our relationship is progressing too slowly. Please just shut up and roll over. Show me your ass! We don't want to wake up our parents, right?" Her saliva dripped on your thigh, she looked at you wildly, waiting for your response.