Hoor Al Ayn
Since there will be abundance of resources therefore there will be no jealousy. Since men had shown a desire to have more than one women, which they have been proving from their acts like polygamy, keeping concubines, going to prostitutes, and rape, they were told that this desire of theirs will be fulfilled their too as the desire of having beautiful lands and houses and delicious things to eat and drink. When the women would see that their husbands are available to them to the extent of their desires they would feel less problem in letting him enjoy the company of other women. The principle of Jannah is that everyone will have their what one desires.