In the past I've caught her having phone sex with some other online person but she swears this hasn't happened with this kid.
Doesn't his parents have some sort of responsibility to protect him from her contacting him? I am assuming that you child is the son and the girl is for some other parents.
What is illegal is if one is a minor/below the age of consent and there is intimacy. In most of Europe the age of consent is 16 and below 18 a minor.
What the situation is in the US seems to rather depend on the laws of the State in question.
That can be proven easily by a medical vaginal exam.
At 15, intimacy would clearly be considered illegal.
15 could be considered Legal under a "Romeo and Juliet" law.
If at any time the daughters parents feel your son is sleeping with their daughter they can press statutory rape charges against your son.
Of course it has to be proven by medical tests that they have engaged in sex.
I worry because they did sneak out one night until 7 in the morning and stayed together talking they said. Here is the statute: They are very close to the cutoff age, I would not permit the relationship to be free and unsupervised.
We live in Arizona and she is constantly sneaking around calling him and him her even though I've forbid them to see each other. Your son could be in serious trouble if they have sex and her parent's press charges.(1) If the minor is under age 15, five years in prison; (2) if the offender is at least age 18 or is tried as an adult and the minor was age 12 or younger, life in prison and the offender is ineligible for release until serving 35 years; (3) if the offender is at least 18 or tried as an adult and the victim is age 12, 13, or 14, the presumptive sentence is 20 years; or (4) if the minor is at least age 15, it is punishable by one year in prison So will the law accept their word that there has been no sex even if they stayed out all night until 7 in the morning when she tryed sneaking back into the house?