I have a JW friend who's done somethings with his JW girlfriend in the porneia category. Not intercourse though.
He wants to go to the elders and confess. I'm not sure of his reasons why, I mean he sees the BS of the cult. Maybe part of him still believes, maybe he feels bad because she believes in the cult, I don't know. But, I do agree its a good idea for him to do it now and get it over with. It wouldn't be good in the future if he decides to fade after he leaves home and then this issue comes up and the elders hunt him down to DF him. (He would choose fading over DF'ing to keep some family ties, so a DF'ing while trying to fade, then having to get reinstated in order to start fading again would suck).
I'm trying to figure out what to tell him it'll be like at the JC so he'll at least have an idea of the best way to put on an academy award winning performance. From what I've read in the elders manual, the difference between him getting DF'ed or reproved depends on how the elders play god and judge him based on how they feel. Is that pretty much all there is to it? Whatever he does or says, cries or doesn't cry, it doesn't really matter. He could really be repentant, but if they decide they don't feel he is, they'll DF him instead of reprove? He could also be in store for some embarrassing graphic details if these perverts decide they want to hear them? Is there also the risk of one of them getting DFed while the other just get reproved? Is it possible they'll tell him to get engaged and set a marriage date or get DF'ed?