No fatigue will touch them in It, nor will they be expelled from It.
It is told in verses 18: 107-108: “Indeed, those who have believed and did righteous deeds, they will have the Gardens of Paradise as a lodging, wherein they will abide in It forever, they will not seek to get out from It”. It is told in verses 98: 7-8: “Indeed, those who became believers with Best Book Adhikr and do righteous deeds, those are the best creatures in the land. Their reward with Allah will be the gardens of eternal residence beneath which rivers are flowing, they will abide in it forever eternally, Allah has pleased with them and they have pleased with Him that is for the one who fear his Lord”. It is told in verses 78: 31-35: “Indeed, for the heedful are the attainments, parks, and grapevines, and mates of equal age, and filled jugs of drinks; no ill speech or any gossip will they hear in It”.
The one who enters Paradise will be at his 33rd age. Since there is no sexual intercourse in Paradise, the inheritors of Paradise will have no sexual organs. They will have no age difference, no color difference, no size difference, no internal organs, no excretions, etc. as explained in verse 2: 25. See explanation 3: 133-136; 13: 23-24 and 14: 23-25.