I ended up taking care of my niece for a while when she came to Tokyo for a club trip. I was captivated by her big butt visible even over her sports wear, but then she confided in me with a shocking concern that she might have a narrow vagina. Her curiosity escalated from wanting to show her penis to a desire for slow insertion into her tight vagina! The J-style niece, obsessed with the slow piston and middle-aged large penis, can't stop peeing!!