So, the original video linked to this post got deleted. But I found something better. This playlist describes the phenomenon in detail...

So, the above video describes a phenomenon that I have actually observed in nature. Two of my ex girlfriends expressed to me their lesbian proclivities. The last one said that she does it with girls when drunk, and I also had this girl in Prague many years ago that said she has fun with her Spanish friend.

So essentially, these promiscuous modern women are often bisexual, and I wonder how widespread this is?