Just Curious About a Picture….

Just recently, I posted a picture that has two girls fucking a snake. It seemed so interesting, that I posted it right away. But soon, I got curious about the picture. How do you fuck snakes anyway? I’m not familiar with it since I’ve only been fucking mammals (though I have yet to try out dolphins and whales). Does anyone out there know how? Is it painful? I dont know… it just seems that way when I look at it but I’m now really sure about that, ain’t I? Anyway, if anyone knows the answers, please reply. I’m starting to think of doing it with snake soon. And I wanna know just how.