Your son needs an STI test including a swab for certain STI. You need to sit down to talk about STI, Statutory rape age , contraceptives that you believe in, appropriate sexually activities both for himself and w. others and boundaries. Please, please explain that oral has the possibility of STI and cancer risks to females. Get him condoms.

I don't think he has to be punished but he needs new boundaries and the consequences. If you have a 2-story don't allow him upstairs with his GF and doors open at all times. You may want to have him volunteer in a place that deal with the consequences of those actions. You may want to look into getting him a part-time take 'child support' to save about 25% for him. My son does not have a door and he never will.

As far as her parents I would urge her to go to the doctor and tell her parents. I would wait until they are caught again. If you do choose to tell them do it in person.

Good