[survive] Big-cocked brother flirts with cheeky and masochistic sister (motion comic version)

Overview： A story about a cheeky little sister who came to stay at my house and somehow ended up having sex with her. One weekend,my little sister "Rina" came to my house to do some sightseeing after a cosplay event in Tokyo. She said she didn't have any money so she wanted me to stay at her house. When I met her for the first time in a while,she was as cheeky as ever,and she didn't think of me as her brother at all. She even started changing clothes in front of me and asked me "How do you like it?" I did think that her breasts were bigger than before. While I was thinking about that,Rina started to provoke me,saying "Hmm? Maybe I'm getting aroused?" I tried to act tough and said "I'm not going to get aroused by someone like you!" but she seemed to get mad and asked me "You're definitely not going to do it? Let's have a contest then."