Girlfriend goes on a trip and he fucks her big-breasted best friend, Sari Kosaka (PPPD-701)

My girlfriend's busty best friend tempted me to have an affair and go at it hard! My live-in girlfriend went on a family trip, leaving Tatsuya feeling lonely for the first time in a long time. But before she left, she invited her drinking buddy, Kosaka Sari, and I took advantage of her being drunk to get close to her. After she went on her trip, we spent our days living together, having sex every day...