process options which require two accompanying arguments

Hello,
I know Geopt::Std can process single-character option which require one accompanying argument. But my problem is i would  like to invok program with some options which need two accompanying arguments. Is there some way around this?

part of program:
# this program only works when invoke like
#              command [-o sth] [-f filename1 filename2]
# but not
#        command [-f filename1 filename2][-o sth]    
# because processing of @ARGV stops when an argument without # a leading - is encountered.

use Getopt::Std;
getopts("f:o:");

if(!defined($opt_o)){
   $opt_o="other";
}
$other=$opt_o;

if (!defined($opt_f){
   $file1="name1";
   $file2="name2";
}else{
   $file1=$opt_f;
  $file2=$ARGV[0];
}

.............