God designed sex to be relational, but self-stimulated sex is lustful. God designed sex to be covenantal, but self-stimulated sex is non-committal. God designed sex to be intimate, but self-stimulated sex is superficial. God designed sex to be fruitful, but self-stimulated sex is fruitless. God designed sex to be selfless, but self-stimulated sex is self-centered. God designed sex as a complex union, but self-stimulated sex involves personal isolation. God designed sex as a complementary heterosexual act, but self-stimulated sex is a personal homosexual act.