FNS-071 _The sexy pair of my lover's sister

Yuki and his girlfriend have known each other for a long time. Today her parents were away so she took Yuki home to discuss the overseas trip they had planned. Her lover really wanted Yuki to fuck her, so even though it was already dark, she still refused to let Yuki go home. A while later, her lover's older sister Megami came back from drinking. This was the first time Megami met her future brother-in-law Yuki, so Yuki couldn't refuse the invitation to stay and drink with Megami for a day. That night they talked a lot about the love story of Yuki and Megami's sister. That said, most of the time Yuki's eyes couldn't take their eyes off Megami's big, round, and extremely attractive chest. The first meeting went like that, until one day Yuki received a call from Megami. She was drunk and missed the last train home so she wanted to stay at Yuki's house for a day... Let's watch what happens next.