Deuteronomy 13:6-8
6 If thy brother, the son of thy mother, or thy son, or thy daughter, or the wife of thy bosom, or thy friend, which is as thine own soul, entice thee secretly, saying, Let us go and serve other gods, which thou hast not known, thou, nor thy fathers;
7 Namely, of the gods of the people which are round about you, nigh unto thee, or far off from thee, from the one end of the earth even unto the other end of the earth;
8 Thou shalt not consent unto him, nor hearken unto him; neither shall thine eye pity him, neither shalt thou spare, neither shalt thou conceal him:
When were children, we all had that one friend who got the whole group in trouble. They could talk you into doing anything with the promise no one would ever know and everyone else is doing it. Then you would be in trouble right along with them. Those types of people are not the one you want in your walk with Christ. It is the old saying, if everyone was jumping off a bridge would you? The answer is no I hope. People who try to get you to stray from your walk with Christ to have fun, need to be prayed for. Take a stand and tell them no thank you I am a Christian. If they continue to push, it may be time to find new friends.