The vampire priestess

In case that, like me, you never have heard about "The Lair of the White Worm", it's a 1988 British horror film based loosely on the Bram Stoker novel of the same name and drawing upon the English legend of the Lambton Worm.  

Coming back to this commission, this blue snake-like vampire woman is Lady Sylvia Marsh. In the movie, she seems only an enigmatic and seductive woman but as I said above, she's a vampire, and much more: she's actually the immortal priestess to the ancient snake god Dionin. Lady Marsh worships it and is keen on its return. 

It turns out she needs the blood of a virgin to release the snake god, so she abducts a woman of the area, intending to offer her as a sacrifice to her god. In this scene we see Lady Marsh teasing her captive.

I've read a few reviews telling that it's a surreal horror movie filled with the occult, blood sucking, a giant snake, a young Hugh Grant and... Amanda Donohoe with a strap-on. Sounds funny xD