While some girls are taking their parents to court to pay for their college, others are working their way through school in the porn industry.

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Belle Knox, a Duke student who outed herself as a porn star after being bullied by students , says she wants to become a lawyer and help sex workers.

Knox defended her decision to do porn as a way of funding the $60,000-a-year tuition at the Top Ten school in North Carolina. Belle claims she is flown out to her film shoots, all expenses paid.

One estimate claims female porn stars can make up to $80,000-a-year if they do one scene a week.

What did you do to work your way through college?