Sumire-san will soon marry my brother. She doesn't care about me, who is staying with her, and she always walks around in her boxer shorts without a bra, and has creampie sex in front of me while I look on, saying, "I'm going to get married soon." I can't stand just masturbating anymore! While my brother is away, Sumire-san sees through my feelings and plays with me with a blowjob and a handjob over my back. My dick was at its limit. I mustered up the courage to ask her, and she said, "Just for today. When he comes back, everything will be back to normal."