My girlfriend and I are about to get married. Today I visited her house and met her older sister, Riho-san. Previously, Kurumi also showed me her photos and I knew she was the idol I had been idolizing for so long! She is even more beautiful and attractive in real life! She also seemed to be trying to invite me. She let me see her beautiful big tits, gave me a blowjob and more importantly, she let me have sex with her without wearing a condom! Even when I was about to get married, my girlfriend still forced me to wear a condom, so when Riho-san invited me like that, I couldn't stop! Our secret relationship continued like that until the day before the wedding. My sister and I plan to make love one last time and end this relationship. But Kurumi unexpectedly found out. We were discovered but we didn't stop. I ejaculated a lot of sperm into Riho right in front of Kurumi. I'm not sure what the wedding will be like but I know my bride will no longer be Kurumi but her beautiful older sister...
