Mutah

Ref: Shia Chat

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I would like to ask, can a muslim man marry beside his permanent wife, mutah? (i suppose, the answer is yes)
yes
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I would like to know also, is there any restriction about it, namely, does he need the permanent wife's permission
According to Sistani - not sure about other marjis - if the mutah is Ahlul Kitab he needs his Muslim wife's permission.
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or does he need to present some circumstances, what makes him feel, he NEED to marry? (e.g. the wife cant have a child, he lives abroad, etc)Or can he just go on and marry in mutah?
Nope no reason required, he can just go..
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Also, can he marry more than one wife in mutah, beside his perm. wife? Is it possible for a wealthy man, according to Islamic laws, that if he needs, he marries like 12 mutah wives? Or are there restrictions?Unlimited