A Christian with pagan friends?
Christians are pagans.
"Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness? And what concord hath Christ with Belial? or what part hath he that believeth with an infidel? And what agreement hath the temple of God with idols? ..... Wherefore come out from among them, and be ye separate, saith the Lord,"