Mimbrane attachment skips balls if the PC doesn't have a cock mimbrane. Balls attachement specifically refers to cock mimbrane presence, but cock mimbrane scenes make no provision for multicock. Short of rewriting a lot of stuff heavily (NOPLZ), cock mimbranes only attach when there is a singular cock.
Shitty, but it's either this or I throw myself under a bus :|
Should fix the codex issue.
Burn regexp burn.