Do agree with the first answer u received, except with the birth control part which is allowed only in case if pregnancy would be life threatening to the mother, otherwise its not encouraged opr allowed....
for the second answer, funny thing he thinks that "four people having sex in the same time" aint weird or kind of disgusting, but thinks that limiting sex between wife and husband is superstitous....
i didnt know that this zoo sex aint harmful, how about th STD "sexually transmitted diseases" spreading each day ,innocent children born every moment because a man and a woman wanted to have a hot night, even if they did abortion, then hindreds or millions of souls are killed each and every single moment.....all this following zoo sex...
As a conclusion, only one thing to say..im proud to be a Muslim.