If the author of this ill written article were well versed in her Bible she would know that sex outside of  marriage/with anyone other than your husband is sinful.  The dark always runs from the light for fear of their continued sin being exposed.  They hate the truth & those who speak it. 
One scripture says it all although there are many.  Hebrews 13:4 says, "Marriage should be honored by all, and the marriage bed should be kept pure, for God will judge the adulterer and the sexually immoral"  Sexual Immorality includes adultery, prostitution, sexual relationships between unmarried persons, homosexuality and beastialty
Would all the unbelievers on this forum be comfortable with their  own parents, siblings sons, daughters or even grand-parents actively participating in these activities and being okay with that?  
All I can say is thank the Lord that I am now a reborn Christian headed for heaven and not for hell.  
God help us all in this fallen evil world where false prophets abound.