Moje nevlastní sestra, která žila sama, se najednou vrátila do domu mých rodičů! Je vždy nahá, aniž by si mě nevšimla.

The sight of my sister in the nude was too much stimulation for me as a virgin, and of course I got a full erection! As I started to make fun of her, she took pity on me and asked me if I wanted to fuck her. I was so excited that I couldn't stand my desire.