Run from sexual sin! No other sin so clearly affects the body as this one does. For sexual immorality is a sin against your own body. – 1 Corinthians 6:18

 

AVOID THE IMMORAL WOMAN  
1 My son, pay attention to my wisdom;
    listen carefully to my wise counsel.
2 Then you will show discernment,
    and your lips will express what you’ve learned.
3 For the lips of an immoral woman are as sweet as honey,
    and her mouth is smoother than oil.
4 But in the end she is as bitter as poison,
    as dangerous as a double-edged sword.
5 Her feet go down to death;
    her steps lead straight to the grave.
6 For she cares nothing about the path to life.
    She staggers down a crooked trail and doesn’t realize it.
7 So now, my sons, listen to me.
    Never stray from what I am about to say:
8 Stay away from her!
    Don’t go near the door of her house!
9 If you do, you will lose your honor…
    

Proverbs 5 is titled, Avoid the Immoral Woman.  You’ll also notice, throughout chapter 5 that  Solomon refers to, my son.  Although it appears that the warnings of chapter 5 are just for boys/men, it applies to girls/women, as well.  Guys certainly can be smooth-talkers and flatterers in an attempt to seduce (entice into sexual activity) girls –  v.3 lips sweet as honey and mouth smoother than oil.  But at the same time, girls may choose to dress provocatively in an attempt to seduce guys, leading to sin – But I say to you that everyone who looks at a woman with lustful intent has already committed adultery with her in his heart. – Matthew 5:28

Solomon says again with emphasis in v.8 – 
Otherwise, the result – v.9a – You will lose your honor…

The surest way to protect yourself from getting caught up in sexual immorality (sex outside of marriage) is, v.8 – DON’T go near the door of her/his house.

You could take that to mean, in the literal sense, don’t go “home” with them.  Or, in the figurative sense, the “door” meaning to approach in conversation, put yourself in a vulnerable position (alone, one-on-one), etc.

Both of the above scenarios are assuming that you have found yourself in a tempting situation. A situation where you suspect the person you are with, or you yourself, may be tempted to be sexually immoral.

Naturally, it is ok to interact with people in a conversation, or hang out at friend’s houses.  But, for your own “protection”, and accountability,  it’s a good idea to hang out in a group versus one-on-one.