Let me just start this off by saying I am a fan of riding with women.
However it can present certain challenges.
I rode over 100,000k's with my late partner and rarely did we have any kind of problem or conflict.
One of the reasons I like riding with women is that it tends to defuse the macho testosterone fueled fast rider ego,if you are riding with just one other rider who is a women.
This makes the ride safer and more relaxing yet enjoyable if she is a fairly skilled rider.
Things get more complicated when you start adding other people to the mix.
When you add more women it's not so bad but guys may tend to try and show off their skills and bravery to the other women on an unconscious level.
Adding more guys to the mix particularly where single women are involved is a recipe for disaster as it can soon develop into some kinda competition.
Now I know many of you will claim to be mature enough to not allow this to affect you but on a subconscious level I'm not sure if guy's can always help it or are even aware they are doing it.
So I guess what I am saying is that riding with one women alone is fine but riding with a women in a group situation can be hazardous.
The more attractive the women the more guy's will tend to show off in an attempt to impress her.
Now I believe there are a few exceptions to this rule,the most enjoyable one being where the women is a better rider than the guy's she is riding with,pretty rare and still dangerous but fun to watch
Riding with couples seems to work well as nobody is trying to impress or get laid.
So I guess if you are riding with pretty girls on motorcycles the safest plan is to just keep it a twosome and avoid a testosterone fueled pussy race,because no pussy is worth getting yourself killed for. :P