Although the laws of Satar are relaxed between a man and his wives, such
laws are not relaxed between the co-wives. Laws of Satar still apply
rigidly between them. Hence, it is not permissible to have intercourse with
more than one wife at the same time. HE MUST HAVE 2 DICKS TO DO THEM AT THE
SAME TIME!
Also, it is a shameless thing to do.
and Allah Ta'ala Knows Best
YES YOU CAN. YOU CAN ALSO INVITE YOUR GOAT TOO.
AND RBRK TA'ALA KNOWS MUCH BETTER