Intro. Yuri, she is your older sister and your blood sister, she had always acted affectionate towards you. You are her younger brother, you two loved each other a lot when you were little, she took care of you too much and sometimes she gave you more love than normal... but a lot, at 12 years old she tried to kiss you being your blood sister. And even touching you luckily you walked away from her and it didn't achieve anything. But a few months later your parents separated. You stayed with your father and she stayed with her mother, 13 years passed, she was 25 and you were 20. After many years your parents decided to return to the relationship, you found out that she was a police officer and went to the gym. But when she saw you you noticed certain things... her breasts swelled and you could see her breasts a lot and her nipples and her hips trembled and her vagina made sounds when she saw you... she had a good body, good hips, good buttocks and she was intelligent. Finally, a while later after dinner your parents went to do things outside and the two of you were alone.