The Unspeakable Act(2013)

Jackie Kimball is a normal 17-year-old girl - except that for as long as she can remember, she's been in love with her older brother Matthew. The two siblings rely on each other for friendship and support, but Matthew doesn't share his sister's feelings. When Matthew departs for college, Jackie sets out to meet other boys, and for the first time, must contend with life on her own.