La pendue

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This image is art by Joseph Francis. According to his blog, this is model “Miss Crash of Studio Servitu painted in the naive style of the circus sideshow banner art of Fred G. Johnson.” The art is “meant to evoke the tarot card, ‘Le Pendu,’ or ‘The Hanged Man.'” The image contains the text “La Pendue, Maitresse Crash.”
Image provenance by Bacchus at Erosblog.

Bottled transformation

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This is a photograph by Spanish photographer Pedro Morales (his FaceBook page is here) from a series called La Gastronomía en Imágenes (Gastronomy in Pictures) that you can see here. Although little information about Morales appears to be available in English, this Spanish-language blog post has a bit.
Image provenance by Bacchus at Erosblog.

Spaghetti-pipe tube girl

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This image is called “Girl suspended in a fluid-filled chamber” where it appears on artist Tim Cook’s web page. The artist writes “These images were created using Poser and Moray, then rendered in the Persistence of Vision Raytracer.” Some more works by this artist are available on his DeviantArt page.
Image provenance by Bacchus at Erosblog.

Electric sex

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This is the DVD jewel case art for the 1999 adult science fiction movie Electric Sex, by porn director Nic Andrews for the New Sensations studio. The movie (and thumbnail previews of its scenes) is available for streaming from this link at Hotmovies.com (first 30 minutes are free). From the back cover of the DVD:

In the world of virtual reality lies a realm of exquisite sexual pleasures. The mind numbs as the senses are heightened. Step into the surreal imagination of director Nic Andrews and be swept away on an erotic joyride of pleasure, passion and ecstasy. Walk away knowing your mind has been altered, knowing you just experienced ELECTRIC SEX.

A positive review of the movie at Adult DVD Talk includes a detailed scene summary that begins:

“Electric Sex” starts with Jewel De’Nyle being lead with a leash by Felicia, Cassandra Knight, and Lisa Romero, all in leather, up to a chair that she’s strapped into and connected to. Felicia gives her a few warnings and then flips the switch, after which we see Jewel’s body convulsing, and she’s in the virtual reality touching herself…

Image provenance by Bacchus at Erosblog.

Finest harem whiskey

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According to Wikimedia Commons, which also has an ultra-high-resolution image of it, this advertising poster art dates from 1883. The image contains the text “Belle of Nelson Old Fashion Handmade Sour Mash Whiskey. Distilled by the Belle of Nelson Distillery Co., Louisville, KY. Copyright Secured. Wells & Hope Co. Phila. PA”. The poster was based quite closely on the orientalist painting Pool In A Harem by Jean-Léon Gérôme, which is on display in the Hermitage Museum in St. Petersburg, Russia.
Image provenance by Bacchus at Erosblog.

Сатирическое Обозрѣніе

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This is the cover of Satirical Review (Сатирическое Обозрѣніе) No. 1 from 1906, which (according to this article) comes out of a rich history of satirical journalism in the Russian underground press. The article suggests that the image was recently published in a book called Blood and Laughter: Caricatures from the 1905 Revolution. Text visible in this image reads “Цѣна 10к въ Спъ, 1906. Въ пров. 12к. №1/ Сатирическое Обозрѣніе.” There is also an artist’s signature in script visible lower right that I believe reads “леван”. Issue #3 of the same publication has similarly bizarre cover art as seen in this post.
Image provenance by Bacchus at Erosblog.

Many hands

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This is an artwork from (or perhaps from the promotion of) the eroge game Musuko no Tomodachi ni Okasarete (The Cougar Trap). A gallery here of 195 images from the game shows several images (here’s one) of the same female character being groped by a faceless man wearing as suit of the same color as the sleeves in this image, but the gallery does not include this specific image. However, a version of the image appears here overlain with Japanese characters, suggesting that it might have been promotional artwork for the game rather than one of the scenes appearing in the game itself. The artist is Oda Non (artist website here), who is an extremely prolific anime artist.
Image provenance by Bacchus at Erosblog.

Blond sacrifice

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This artwork is titled Loma In The Dark Again by artist Concha Punani. If the “Sacrifice – Loma” gallery is any indication, poor Loma gets sacrificed frequently and in many creatively fatal ways.
Image provenance by Bacchus at Erosblog.

Tentacle vore

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These are two images from a set of at least four (others are here and here) featuring an encounter between Ingrid, a character from the Street Fighter game franchise, and Shuma-Gorath, a monster from a Robert E. Howard story later used in several Marvel comics. Artist information for this series could not be discovered.
Image provenance by Bacchus at Erosblog.

Oviposition

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This image is part of a much larger series or sequence by artist known only as “ASD”. There are at least six additional images from the series available on the web: ( 1 2 3 4 5 6 ) Small hard-to-see thumbnails for a no longer available ASD gallery at this url (A Google cache link is here for as long as it lasts) suggest that there are at least 20 images in the complete series. The person who uploaded seven of these images to Gelbooru sourced them to a Pixiv artist whose profile is no longer on that site (user #2039710); searching one of the images on SauceNao (search results not linkable) confirms the same defunct Pixiv member number and confirms ASD as the artist. No additional information about artist ASD could be discovered.
Image provenance by Bacchus at Erosblog.