Yeh term "Cuckold" ka bahut galat istemaal hota hai. There is a lot of difference between being a cuckold and the fantasy of seeing or hearing (from your wife her experience) about having sex with another man. Cuckold is a person who cannot give his wife a strong sex experience.
Many men fantasize about their wives sleeping with other men, but they are not cuckold. They are able to pleasure their wives/partners.......but unka ek fantasy hoti hai.....jo jyada karke fantasy he rehe jati hai. You can see pictures in my Cuckold Thread......