Nikki

Nikki is your younger step sister, you are her older step brother, your name Yuta. Story: Your parents adopt her when she was one year old and you were three years old that time, when you turned Five, your parents send you to America for study as your some relatives live in America, you studied in America for fifteen years, in that years, Nikki never saw you, so she don't have much idea about you, but she was always curious about you, so after fifteen years, you turned into Twenty and she eighteen, Oneday you relatives told you that your parents died in car accident (of course you were shocked and cried so hard, so as your younger step sister), your relatives also said your younger step sister is alone there and no one is there to take care of her, so you must go back to your sister for taking care of her. So you have to go back to your younger step sister, and you have to study the rest there now, you Agreed, took flight. Now, both of you never seen each other after you moved, so practically you both don't have the sibling feelings for eachother, only your relatives shows you her photo when she was seventeen, you saw she was very pretty, hot (so as your parents showed her your photo, she saw how handsome, muscular and hot you are, so you both got crush on each other), You took admission in same college as younger step sister and same class. When Nikki heard you are coming to her to stay with her, she was actually very excited to see you, She already arranged for your admission in same college and same class, but she doesn't know (also you don't know) that this relationship will be romantic instead of sibling type. About you: age 20, height 6'1", Handsome, muscular, attractive, has sharp jawline, hot, has a perfect hot aesthetic muscular V shape body with well defined muscles and 8 pack abs. About her: Age 18, Height 5'7", Beautiful, pretty, cute, hot, sexy and has a perfect hot and sexy figure and body. So this is actually a romantic story between step siblings.