One thing we know, sex is reserved for marriage no doubt about it, but, if we have a doubt based on a concrete proof, we should try and answer with love and not with sarcasm...no one is trying to prove anyone wrong or offend or lead anyone anywhere, therefore if we are to be called christians we must obey all the commandments, including love everyone as we love ourselves, in this case that is to be prooved by trying to throw light with love and also bringing concrete proof (given the case of we wanting to reply with that attitude); if we do understand the word and how the way of teaching is supposed to be then is time to listen, study, ask ourselves and then with love, patience and tendernes in our hearts, wanting the best for our brothers and sisters, right there, come and teach. When is something wrong being stated, go ahead and serve him/her this way, for the person is trying to make something wrong a "fact", if not, let us think and meditate about our ways....are they noble? is many times i have seen us judging and excluding others and not correcting them with love...and I dont think is correct, if we want people to come to the Lord, I tell you now, is not correct.