 Let's face it, sleeping together has become so commonplace that it's actually part of the decision-making process when it comes to an intimate romantic relationship. It makes a man invest in you over another person that they might have slept with. When you share the same values, when your lifestyles are blendable with one another, and most importantly, there's a level of emotional maturity within this person. It's really the integration of each other into each other's lives. This requires going beyond the surface in dating where you build the deep roots of trust that makes a man want to invest in you beyond sleeping with you.