I was staying with at my step-brother's guest house, and he had a new family staying with him in the main house. I was about to hit the town after taking a shower when I found my step-Niece Natalie laying in my bed, I was totally shocked after asking what she was doing there she expressed that she wanted to see my cock. She had heard that there are different sizes and colors of dick and wanted to see what mine looked like. She left me no choice she told me, either way, she would tell her dad, I could not have that happen. I have to show her but it doesn't stop there she keeps wanting more and more until I am fucking her in the guest house.