well their are reasons given like if somoene is a divorcee or widow/widower who does not want a regular marriage but does not want to engage in zina, then they can use the facility of misyar. or for ppl who cant afford to get married and support a wife,
for muttah it is said when you are away from home and rather than commit adultery, you marry someone and then do the deed officially.
I think people can make almost anything sweem rational when you compare it to some ill, luckily there are scholars who are also opposed to it because of the social impact of practices like these, and the issue of children etc etc.
but from what I read its totally allowed. :halo: even if it means that it just allows saudi sheikhs to get jiggy with strippers in vegas..