You may also appreciate r/Eldritchmonstergirls and r/LovecraftianArt.

If you just want tentacle erotica, try r/tentai, r/tentacleporn, and r/consentacles.

If you just want imaginative erotica and/or sexy nonhumans, try r/ImaginaryBoners (and its eldritch spawn r/ImaginaryLesBoners, r/ImaginaryGayBoners, and r/ImaginaryLadyBoners), r/EscapistPorn, r/ImaginaryMonsterGirls, and r/rule34.

If you want less NSFW things Lovecraftian, check out r/Lovecraft and r/Cthulhu.

• All submissions should include the title of the work and the name or handle of the artist (if known); uncredited works will be deleted.

• All subjects must be 18 years old or older.

• Links to news articles, essays, fiction, etc. related to the Lovecraftian erotic are also welcome.

• Off-topic works will be deleted. Just because it's got a tentacle doesn't make it automatically Lovecraftian.

• Links to blogs, erotic fanfiction, NSFW games, etc. allowed as long as it is on topic. Links to pirated material will be deleted.

• Self-promotion of artwork, fiction, games, your Patreon, etc. is allowed as long as it is on-topic, just keep it reasonable.

• Personal attacks are strictly prohibited.

Recommended Reading (Nonfiction)

• The Long Tentacle of H. P. Lovecraft in Manga

• The Posthumous Pornifcation of H. P. Lovecraft

• Sex and the Cthulhu Mythos

Recommended Reading (Fiction)

• Conqueror Womb: Lusty Tales of Shub-Niggurath

• Cthulhurotica

• Eldritch Blue: Love & Sex in the Cthulhu Mythos

• The Innswich Horror

• Lovecraft After Dark

• Lustcraftian Horrors: Erotic Stories Inspired by H. P. Lovecraft

• Priestess: The Collected Blackstone Erotica

• The Shub-Niggurath Cycle: Tales of the Black Goat with a Thousand Young

• Trolley No. 1852

• Whispers in Darkness: Lovecraftian Erotica

Recommended Comics & Graphic Novels

• The Convent of Hell

• Neonomicon

• The Pornomicon

• Tales from the Leather Nun

Recommended Films & Anime

• Mystery of the Necronomicon

• Teenage Twins