How did you get your wife to go along? How long did it take?

You would have to start out with subtle little hints. If you are able to introduce sex toys into your lovemaking they can be a good visual aid and assist you in proceeding. If you get her to watch porn with you in bed, perhaps you can slowly introduce a realistic dildo into your lovemaking. As she uses the dildo or you use it on her, make little comments about how good it looks to see her being turned on by it. Tell her what a beautiful sight it is for you to see her with it inside her. If you know anything about her past love life or her past lovers casually tell her it would be alright if she wants to imagine that the dildo was her ex-lover. Watch her reaction...they usually begin to get increasingly hot and aroused with such subjects, particularly during lovemaking. You can more or less calculate if you are having a positive reaction from her or is she acting totally shocked. If the reaction appears positive you can encourage her to masturbate in front of you, telling her how much it turns you on to watch her do that. You must proceed very cautiously so as to not turn her away from the idea of sex with an ex-lover (or a new lover if that is to be the case). If the reaction is positive you can gradually become bolder...suggest you name your dildo with her ex-lover's name and from that time on refer to the didldo by that name. If at any time you completely turn her off she will not hesitate to tell you!...if on the other hand, some of your conversation makes her hotter, then you know you are on the right track and can gradually increase the intensity until she will one day soon give in to fulfilling your cuckold fantasies. As for me, the cuckold lifestyle has been 98 % positive...very little in the way of regrets...I still get a huge hard-on when I visualize some of the great erotic dmoments we've had together with any of her bulls. It's been a win-win all the way around, and we're both glad we took the big step. Good luck.