Sexual Sins Include:
Immorality which is moral behavior contrary to God's standards.
Perversion-to turn from the true and/proper use of sex, to misuse or abuse it, e.g., homosexuality.
Adultery - Sexual intercourse with a person other than one's spouse.
Fornication - illicit sexual intercourse, i.e., outside of the marriage bond.
Immorality, adultery, sexual perversion, and fornication are works of the flesh(Gal. 5:19-21). If anyone shall do such things, they shall not inherit the Kingdom of God. When we allow improper sexual drives to exist within ourselves as Christians, an inner tension will result in the mind, emotions , and will. One part will want to be spiritual while the other will tend towards sensuality. The result is double-mindedness(James 1:8), leading to a reprobate mind(Rom. 1:28)