Chị kế của tôi sống một mình đột nhiên trở về nhà của bố mẹ tôi! Cô ấy luôn khỏa thân mà không nhận thấy tôi.

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.