ないしょのせいふく 〜家やホテルで覚えたてのエッチを親戚の美人JK姉妹にぶつけます〜

With both parents working, I found myself alone at home. During their absence, my beautiful cousins, the elder sister Yuki and the younger sister Hina, took care of me. What started as help with daily needs turned into something more intimate, as they began to offer erotic services. We had to be careful not to let Mom find out about our activities, and even ended up visiting a love hotel to explore more adult experiences! Living under the same roof with these beautiful sisters who adore me, our sweet and secretive life together begins! (Source: Fanza, translated)