etheral eroticism

I find this little excerpt to be EXTREMELY sexy...

anyone guess where it's from? Three points for you if you can!

I thought at the time that I must be dreaming when I saw them, for, though the moonlight was behind them, they threw no shadow on the floor. They came close to me and looked at me for some time and they whispered together. Two were dark, and had high aquiline noses, like the Count’s, and great dark, piercing eyes, that seemed to be almost red when contrasted with the pale yellow moon. The other was fair as fair as can be, with great, wavy masses of golden hair and eyes like pale sapphire. I seemed somehow to know her face, and to know it in connection with some dreamy fear, but I could not recollect at the moment how or where. All three had brilliant white teeth, that shone like pearls against the ruby of their voluptuous lips. There was something about them that made me uneasy, some longing and at the same time some deadly fear. I felt in my heart a wicked, burning desire that they could kiss me with those red lips. It is not good to note this down, lest some day it should meet Mina’s eyes and cause her pain; but it is the truth. They whispered together, and they all three laughed-such a silvery, musical laugh, but as hard as though the sound never could have come through the softness of human lips. It was like the intolerable, tingling sweetness of water-glasses when played on by a cunning hand. The fair girl shook her head coquettishly, and the other two urged her on.