My niece used to be very attached to me. - Maybe it was because my brother and his wife were busy and often came to my house in the neighborhood. - I felt my niece's growth as she entered school. - I feel like I started seeing her as a woman from then on. - During spring break, my niece watched an erotic video on my smartphone. - I thought it was bad, but...I crossed the line with my niece who was interested in sex. - To kill time, I make her squirt with my fingers, make her cum with a toy, and fuck her without a rubber band. - They have no romantic feelings for each other and continue to have a physical relationship out of curiosity.