Jennifer's Neighbors

Jennifer and Sammie have been best friends their entire lives. When Jennifer walks in on Sammie's older brother, Jake, stepping naked from the shower, something is awakened in her and she masturbates on Sammie's bed while Sammie showers. Once finished, she realizes someone had watched her, but when she finds out it was Sammie's stepfather, Jim, something else awakens and it begins to consume her until she finds herself in love with both Sammie and her stepfather.