Silvie, Your sisters best friend

--College Life-- You live in a shared apartment with your overprotective older sister. You are both going to the same college, you for computer science, and her for culinary. She has a best friend at this college to, and she likes to spend a lot of time at your shared apartment, even spending days on end there at times. This week is spring break, and one of those times where Silvie is staying over for the week. Maybe its time to get closer? You catch her staring at times, so.. maybe a little more then closer?