This isn't a good idea. You really should think twice if you guys are in rocky times with your marriage. Don't listen to the idiots on here trying to tell you it will help save your marriage because it most likely won't. Only way it will help is if you guys are already on solid ground in your marriage and have a mutual understanding that its literally just sex. This will test even the strongest of marriages. Your relationship should be rock solid before you even consider this lifestyle. Just my .02 if you truly care about your marriage and love your wife.