BF-602 My plain and quiet girlfriend was trained into a slut by some old guy behind my back. Akari Negao

It’s been three months since I’ve been dating a neat and quiet girlfriend. At first, she was embarrassed to even kiss me, but every time I met her, she became more and more erotic. Why…? One day when I was spending my time with doubts in my heart, I saw it. The appearance of her walking harmoniously with an older man…