In the letter to Teenage magazine's agony aunt, the writer, apparently a teenage girl, said she was raped by a friend and had "no-one to turn to".
The Dear Kelly columnist said in reply that she had "acted like a girl who had been around" and should be "grateful he wore a condom".
It also added that she was too "naive".
The teenage girl recounted a series of events in which she had lied to her parents to stay over at a boy's place unsupervised.