As long as your relationship timeline IS NOT as follows: You’ve known him for a week, you now think you’re “madly” in love, and you're ready to start picking out curtains, then the following reasons are perfectly applicable. However, if you've been quick to jump the gun, you need to slow down, girlfriend. You’re not ready, nor is he, and you’re setting yourself up for a short stay and a knock at your parents door...again. But for those who have put in the time and the effort, and are in this for the long haul, here are the top 4 reasons why living in sin is in!