So we should not discuss certain habits in order to know if it is sinning against God! This man, being a Christian, that posted that thread believed it was not a sin and we were discussing this by giving him scriptures that showed it was sinful when it is done out of lustful thoughts. Scripture teaches us what lust is and the consequences of the unnatural acts, should we rip those pages out of the Bible because it speaks of lust!!! After all it was brought up in Christian Talk & Advice forum as Christians were discussing this sensitive subject in a mature manner giving this young man advice.
These are real issues even with Christians and brought up in the proper way should be opened for discussions. How else will they learn if they are not taught.