If a 25 male is with and having sexual intercourse with a 16 year old female, but they both have parental consent, can charges be fialed on him from anyone other then the parents of the 16 year old female?

The crime of "Indecency with a child" under 21.11 of Texas penal code says that a person commits this offense if they engage in sexual contact with a child younger than 17 years of age, or cause the child to engage in sexual contact where the child is not the spouse of the person/adult; or whether the child is the same or opposite sex. The prosecutor would allow an affirmative defense under the law when the adult is not more than 3 years older than the victim of the opposite sex.

This crime, depending on the circumstances and the age difference, is a second or third degree felony in Texas.

Parental consent does not negate the law. Parental consent may have no impact. If the situation were reported to the authorities by any person with knowledge of the relationship, or if any person filed a report with the DA's office, it is plausible the DA's office would investigate and file the charges against the 25 year old. The parents do not have to be the ones filing the complaint nor is their involvement required. This is a matter of the State VS the 25 year old.

There need not even be sexual intercourse. "Sexual contact" means any touching of the anus, breast, or any part of the genitals of another person with intent to arouse or gratify the sexual desire of any person.