Are there really women with 2 vaginas and men with 2 penises?

No.

The Indian Man with Two Fully Functioning Penises Wants to Have One Removed - Softpedia

Well some web sites says it can happen in one in 5 to 6 million men born. IT sounds more like a birth defect or mutation of some sort. ** if the web sites are real, since I can go to Big Foot web sites that claim he is real.

I actually saw a documentary on a woman that was born with two vagina's - cannot remember the details ,it was many years ago,but it was true.
Apparently it was down to development in the womb and that was how she was born.

Two penises... well that's another story.I have never heard of that via documentaries or by any other means, however there are many stories that are made up and added to over the years - usually by men.They are a myth as far as I know... unless someone out there can prove differently to me, the myth stands.