Today is the first time I've been to my girlfriend's house, Kana. From the moment I met Kana's mother, I was captivated by her huge breasts and charm. We have been in love for a while and of course have made love to each other. But that feeling wasn't what I expected. We only do traditional positions, I want to play bare, but Kana insists on not agreeing. Kana's mother also seemed to know that I was always peeking at her breasts, and she said that I could touch them, look at them, and squeeze them to my heart's content. "Have you ever played naked?", "Have you ever cummed inside?", "Then why don't you put it inside you?". The first time I knew how to play naked was so happy, she taught me all kinds of poses that I had never done with Kana. We kept secretly having sex with each other, I even cheated on Kana to have private sex with her mother. And then the needle in the long-sleeved wrap also came out, Kana encountered it at the battle when I had just shot the second wave of semen inside her mother's uterus...