In a sexual context, a milking machine is a (sometimes fictional) machine designed to 'milk' a male penis or female breasts. The machine stimulates the subject sexually, who is usually restrained and completely helpless, until thte male ejaculates or, in the case of some females, produces actual milk. The milking of males to the point of ejaculation is often (portrayed, described and/or imagined to be) repeated, bringing the subject to experience not only one, but a series of intense orgasms, and finally total sexual exhaustion.
The concept is found in erotic/pornographic BDSM art (such as drawings, rendered art), sometimes also in narrative form (comics, manga and BDSM stories) and in video form (hentai anime and filmed BDSM videos). It seems to be connected to a variety of BDSM subjects, but also has a strong focus on the subject of male virility. Variants of the same or similar concept for female subjects are usually called sex machines (or fucking machines).
The subject is usually fully or at least mostly naked when restrained in such a machine. Milking machines can use a variety of technical methods, typically futuristic ones (science fiction erotica), including moving artificial vaginas, suction, other mechanical stimulation of the genitals, the prostate and possibly other erogenous zones), lubrication, electrical stimulation, (bio)chemical effects, and whatever else the artist could imagine. Psychologic and/or medical methods, that for example increase erectability, drug the subject into a more helpless and/or a more sensitive state, may also be employed.
For female breast milking stories and videos, there are a number of variations on the traditional breast pump used for nursing as well as more elaborate machines (real and fictional) based on those used for milking dairy cows. These devices can be used for scenes of torment as well as erotic stimulation (see videos in the links below). Some BDSM scenarios (seen mainly in videos and anime) feature enslaved women who are humiliated and treated like cows (kept in barns, etc.). This is a sub-genre of human animal roleplay generally known as hucow (human cow).
A milking machine can be a complicated and cleverly designed apparatus, combining various features to completely restrain the subject in a particular position with mechanical or robotic features for sexual stimulation. The semen or milk is sometimes collected in a container, similar in concept to how cow milk is collected in modern dairy farming.
The room in which the scene takes place can be a medical office (see also medical fetishism), industrial factory, dungeon-like chamber or even a domestic environment. Sometimes, a computer is shown controlling the machine. Other possible features include video cameras recording and perhaps video-streaming the scene.
In fantasy illustrations, milking machine scenes are often drawn in an exaggerated cartoon-ish manner, such as massively oversized erect penises or completely unrealistic quantities of semen. Muscular/athletic aesthetics are often, though not always, present.
Most milking machine artwork shows only the machine and the subject. If a bystander (controlling and/or monitoring the process) or a group of witnesses is present, they may be male (which gives the work a male homosexual, M/M maledom/malesub touch) or female (for a heterosexual F/M femdom/malesub touch).
Milking machines and spanking machines
The milking machine concept has much in common with that of the spanking machine. The spanking machine is probably the older of the two, dating back to at least the 19th century. Both concepts employ an ingeniuously designed machine that operates on the body of a restrained subject, likely against their will, to make them undergo an experience of loss of control that is painful, possibly also erotic or sexual, but in any case, deeply humiliating.
Milking machines are occasionally featured in the oeuvre of spanking artists. Sometimes a machine combines the features of a milking and a spanking machine. Spanking artists that have drawn milking machines include Franco and Sardax.
A Boy and His Dog (1975) is a post-apocalyptic science fiction film based on a novella by Harlan Ellison. In this dark comedy, Vic (Don Johnson) communicates telepathically with his dog as they scavenge among the ruins of civilization for food and women. Vic is eventually captured by an underground society populated by nubile women and infertile men. In order to reproduce, Vic is hooked up to a milking machine so a series of "brides" assigned to him can be artificially inseminated. He is strapped down to an operating table with a box-like device covering his genitals. This milking sequence is mostly comedic in tone.
Breast-milking machine videos
- Alicia Angel Bound to a Chair (PhotoHudson, 2007), breast pump milking video.
- Busty June's Husband Humiliates Her (Humiliated.com), with breast suction-cup device.
- Dairy (Insex, c. 2000), video of breast milking of female slaves.
- Hucow Milked (Insex), BDSM slave girl milked by machine.
- Hucow Petra - hentai anime porn of human cow milking, sex, etc.
- Hucows Get Milked (Insex), two women milked in a barn like cows.
- Hucow video clip - woman in latex cow costume being milked, etc.
- Insex milking video (Insex), bound Asian slave girl attached to breast milking machine.
- Lizzy London (DungeonCorp), bound female endures simultaneous milking and fucking machines.
- Machine Milking Chastity - two bound women tormented by milking machine.
- Milk Machine - slave girl gets electric breast pump torment.
- RTB6 (Real Time Bondage), female caned, locked in a pillory, and milked.
- Sophia Jade (DungeonCorp, c. 2009), BDSM video with breast milking apparatus.
- Strange Methods - lesbian video with breast milking machine used for erotic stimulation.
- Vacuum Pump Cylinder Preview (PBD: Penelope Black Diamond), breast pump devices.
- Artificial vagina on Wikipedia
- Electroejaculation on Wikipedia
- Sex machine on Wikipedia (not about milking machines, but related)
- Human animal roleplay