About one-night stand

About one-night stand
My college’s schoolmate asked me a problem about” one-night stand”.
He told me that his girl friend is not beside himself,so, he told me that about body-need,in his company a lots of people deem that the “one-night stand”is possible.
I’m afraid .
Today,a man and a woman are shack up together，but they don’t marry, this instance is very normal,it brought on his problem.
For example:A wrong thing,one person do it, it is wrong,but a lot of people do it,the wrong thing changes right.
We need GOD’s help,we need Jesus in our heart,wo need the truth,we need who can tell me what is right or wrong. It ‘s not imitate someone in the world,we can imitate JESUS perfectly.