[reverse ! stakeout cowgirl! strong creampie ntr! ] on the way home from a part-time job. i went to her house as usual. however, it was her older sister sarina who greeted me. i was told to wait for her to come home, saying, “come up to the house because it’s a lot of trouble.” however, without worrying about such a thing, sarina-san got closer and closer to me. “what kind of sex are you having with your sister?”