Sex as a need and behaviour has been fully dealt with in islam. islam is a comprehensive syatem of a life that takes into the account of spritual , the sosial, the physical and all human needs.furthermore, islam has recognised these needs, organized them and has described proper way of their fulfillment.one of these needs is sexual. islam viewed the sexual act as sacred, private and a sourse of human reproduction. therefore, it is recognized within the family context only.
The Glorious Qur'an says"
say to the believing men
that they should lower theirgaze and guard their modesty that will make greater purity for them:
And GOD is well acquainted with all taht they do
And say to believing women that they should lower their gaze and guard their modesty; that they should not display their beauty and ornaments except what (must ordinarily) appear thereof; that they should draw their veils over their bosoms and not display their beauty.."(24:31-32).