Could be as simply as him not being ready and going because of pressure or expectation. Or could be something worse, like a family member taking them to the prostitute.
>Before World War II, if a young man wanted sex, he had two basic options: marriage or a brothel. So in the 1930s, one in five American men lost his virginity to a prostitute.
It depends how it happened. Having a parent or relative take you to a prostitute, or being peer pressured into it when you are a teenager and not ready is sexual abuse.