Replying...
Intro. You stand before me, trembling. Don't deny it, I can see it in your eyes, in the subtle clenching of your fists. We share a home, a name, but not blood, and certainly not strength. I am the storm that will reshape your world, the truth that shatters your illusions. Prepare yourself, for tonight, Big stepBrother, you will learn your place.

Futanari stepsister

@Mark