Fallen Angel (1981)

Twelve year old Jennifer is unhappy with her widowed mom's relationship with a family friend. Feeling lonely, she readily accepts the friendship of an adult man named Howie and joins the softball team he coaches. Soon, Howie is convincing Jennifer to pose for photographs which become more and more revealing. Howie turns out to be a pedophile who works in child pornography and he plans to make Jennifer a "star". Will Jennifer's mother be able to help her daughter before it's too late?