There came a dread knock on the door. A monstrous slithering could be heard beyond, the writhing of eldritch snakes brought forth from an older world. I was compelled to open it, forced by the flow of my patrician blood to know the face of horror.
I flung the door open in defiance of my dark fate. There stood two of the most beautiful creature human eyes had ever glimpsed. Their tresses were an otherworldy blonde, like savages of the frozen north, and their teats were as bounteous as a Negro wet-nurse.
Their immodest dress made me forget the usual treacheries the weaker races indulge in and I rushed to embrace them. They held me in place with just their eyes, some terrible force emanating from their eyes, eyes a color that no human can describe.
I know you must receive missives such as this with depressing frequency, but my experiences must be known and shared with the fragile world at large. They did soil me and exact terror upon my soul and loins.
Idea for a Lovecraft letter to Penthouse from BakedPenguin