For reasons I think are obvious, she was prohibited from having contact with the boy with whom she had sex when he was 12, and her second sentence was for violating that condition. I do not know whether this was merely a condition of probation/parole or a separate no-contact order – if the latter, of course, it was not automatically lifted by her having been released.
With him being 21, he can now ask that such an order be lifted, as an adult, and is apparently doing so.
It’s my impression that her second conviction was a completely separate legal entity, for having violated egregiously the terms of her first sentence, not “serving out her full sentence for having violated parole.” But I could be wrong here.
As for the rest of the question, it’s important to realize how indeterminate sentences work: if a person is sentenced to, say, three to ten years in prison, he is required to serve three full years, after which he becomes eligible for parole. The parole board then decides whether he is a good candidate for re-entry into society (thus providing an incentive for rehabilitation) and releases him subject to strict terms when he meets their eligibility criteria. If he violates parole, he is recommitted to prison. If he should not have been released on parole before the ten years expires, he is released unconditionally (subject to whatever legal disabilities a convicted felon has imposed on him in that state) – and if he “completes his sentence” as a parolee satisfactorily, he is likewise released from parole unconditionally. (In New York and a few other states, there are rules governing time for parole, so that someone is automatically sentenced to an indeterminate sentence where the minimum is one-third of the maximum, as in a four-to-twelve year sentence. He becomes eligible for consideration for parole at the end of the first third of his maximum sentence, he becomes entitled to parole (barring odd circumstances not related to his original sentence) at the end of two-thirds of his sentence. He must be granted parole if he wants it – though a few men refuse to take it.)