It is the human spirit that the devil loves to possess and use at will to carry out evil activities. So agents of darkness who have mastered the art of soul traveling or astral projection can use their spirits to travel anywhere in the world. Demons can however use the spirits of those who have not mastered the art also to their bidding.
A spiritual rapist is the entity that forcefully has sexual intercourse with someone against someone’s will and desires in order to satisfy sexual passion, take vengeance, afflict, poison, impregnate, put in bondage etc. This entity can be a demon spirit or a human spirit.