Down in the bumps: A brief look at mpreg (male pregnancy) fetishism

A few weeks ago I read an article in The Hornet entitled ‘10 unusual fetishes and their psychology, from sploshing to male pregnancy’ by Daniel Villarreal. The ten fetishes and sexual paraphilias included (in alphabetical order), (i) amputation fetishes (sexual arousal from the thought of being an amputee [apotemnophilia] and/or sexual arousal from individuals who are amputees – although the article featured just one specific type of amputee fetishism – ‘toe amputation’), (ii) emetophilia (sexual arousal from vomiting), (iii) entomophilia (sexual arousal from bugs and insects), (iv) eproctophilia (sexual arousal from flatulence), (v) looning (sexual arousal from balloons), (vi) macrophilia (sexual arousal from giants), (vii) mpreg fetishism (sexual arousal from male pregnancy), (viii) sploshing (sexual arousal from being ‘wet and messy’ [WAM] and also known as ‘wamming’), (ix) ursusagalmatophilia (sexual arousal from teddy bears), and (x) vorarephilia (sexual arousal from the thought of being eaten often shortened to ‘vore’).

I have covered all of these fetishes and paraphilias in previous articles on my blog with the exception of mpreg fetishism (although I have covered female pregnancy fetishes [maieusiophilia], childbirth fetishism, and impregnation fetishism, as well as an article on Couvade Syndrome [whereby the male partners of pregnant women experience empathetic pregnancy-like symptoms including loss of appetite, morning sickness, constipation, etc. but the male knows he is not pregnant]). According to a 2015 Mamiverse article on strange fetishes:

“While most sexual fetishes are driven by men, mpreg enthusiasts are said to include a lot kinky ladies. It stands for ‘male pregnancy’ and this sexy fetish was said to born from the evolution of gay themed fanfiction, and fangirls somehow taking it to the next level”.

Many aspects of male pregnancy have featured in the national news a lot over the past few years including stories on male pregnancy suits, how new medical procedures such as womb transplants could facilitate male pregnancy, and pregnancy among transgender men such as the UK’s first pregnant men Scott Parker and Hayden Cross (who stopped transitioning so that they could start families) and the film about Jason Barker’s pregnancy (A Deal With The Universe). On top of this, male pregnancy has occasionally featured in the world of entertainment, most notably Arnold Schwarzenegger’s pregnancy in the 1994 film Junior (where he gets pregnant as part of a scientific experiment), Billy Crystal’s pregnancy in the 1978 film Rabbit Test, Commander Trip Tucker’s pregnancy in an episode of Star Trek: Enterprise, the French film A Slightly Pregnant Man (where a taxi driver suddenly discovers he is four months pregnant), the 2017 comedy MamaBoy, and the and an episode in Futurama where the male alien Kif Kroker gets pregnant (‘Kif Gets Knocked Up A Notch’), as well as Israeli reality TV show Manbirth.

Based on what I have read online, mpreg in fan fiction is a popular topic and some of the more considered writing about reasons for writing about male pregnancy comes down to a subversion of gender stereotypes. A couple of the better essays I found were by Slayer McCoy (‘Mysogyny and the fetishization of queer identities in fan fiction’) and Lady Geek Girl (‘Sexualized Saturdays: Male pregnancy in fanfiction’). I didn’t agree with everything that was said but they did at least try to look at some reasons for the growth and fascination in mpreg fan fiction. As Lady Geeky Girl opines:

“There is fetishism that happens in many mpreg stories. Now again, this isn’t all that much weirder than porn that shows pregnant women having sex, but that doesn’t make either of them okay. Both fetishize pregnancy, which can be rather demeaning, and mpreg has even fetishized conception… And of course there is one thing all mpreg fics have in common—the male characters are reduced to their biological functions. A biological function that in reality isn’t even theirs. They are magically or “scientifically” changed to be able to give birth and then the entire focus of the fic is on the fact that they are pregnant. Most mpreg fics make the entire focus of the fic on the pregnancy and rarely have any outside plot, putting the entire focus on this pregnancy and baby. Furthermore, these fics often take away the male character’s very identity as a man, not just because he gets pregnant, but usually everything about the character is feminized in the most stereotypical and sexist way possible”.

A couple of years ago, another article by Villarreal in The Hornet briefly looked at mpreg fetishes and featured five videos of “sexy men pretending to be pregnant” with some pretending to be in labour, while briefly overviewing the niche gay pornography Film911 website who specialize in other fetish areas that I have written about including muscle worship, vore, belly button fetishes (alvinophilia), and various aspects of medical fetishism, as well as mpreg fetishism. None of these videos depict gay sex and all of them feature gay models who would never entertain the idea of having gay sex on film. In his 2019 article, Villarreal claims that:

“For some, MPREG is entirely about emotional closeness and intimacy between men; MPREG videos and art show male couples being very sweet, vulnerable and nurturing, something rarely seen in porn. For others, MPREG remains inherently erotic and sexual as it involves literal daddies and breeding. MPREG fantasies can also bleed over into ‘feeder’ fantasies of men growing large with food. The MPREG fetish also contains a noteworthy gender component that idealizes sexual equality”.

Villarreal claims that “MPREG fetishists have dreamed up the idea of a secret ‘male vagina’ hiding directly in the anus with its own female-like reproductive system, though some MPREG babies actually get delivered through the male urethra. There’s even a fantasy taxonomy known as the ‘omegaverse’ where omega ‘carriers’ are impregnated by alpha or beta ‘seeders’. The fantasy sex can involve ‘knotting’ where the top’s penis gets so engorged that it gets trapped in the bottom until climax, much like with dogs. There’s even a lesbian omegaverse where female alphas have female penises”.

The largest online mpreg community is ‘MPREG Central’ and whose administrator goes under the pseudonym ‘Lyric’. Lyric was interviewed by Villarreal and was quoted as saying:

“There is a culture of people out there who are drawn to that idea – men and women who, on some level, wish men could really become pregnant just like women. Some women like the idea of having their man carry and birth their kids, while some gay men wish they could have kids together with their own bodies. [My own reason for getting into MPreg fetishism was a] fascination for stomachs and bellybuttons [and] feeling drawn to the mystery of pregnancy”.

Academically, there appears to be very little on mpreg fetishism, and what has been published appears to only concentrate on the fan fiction element of mpreg within slash fiction (i.e., a genre of fan fiction that focuses on romantic and/or sexual relationships between fictional characters of the same sex). In a 2018 book chapter by Kristina Busse and Alexis Lothian entitled ‘A history of slash sexualities: Debating queer sex, gay politics and media fan cultures’ (in The Routledge Companion to Media, Sex and Sexuality), there is a section on ‘queerer, kinkier worlds exploring desire’ where MPreg is briefly mentioned but not expanded upon:

“The Fanlore entry for ‘kink’ notes that the term ‘usually refers to various non-normative sexual practices or desires, such as voyeurism, fetishism, and the many activities included under the BDSM umbrella’…Fans may also ‘refer to other, non-sexual preferences as ‘kinks’ meaning particular imagery, story-tropes, or elements that they enjoy so much they are worth considerable effort to find and collect’…Within this frame mpreg and domestic romance become ‘kinks’ whose preference ranks on the same order as love for fiction featuring rope bondage, sexual slavery or water sports”.

Christina Yatrakis wrote a 2013 thesis on fan fiction and again mentioned mpreg in relation to it being a new development among fan fiction writers:

“Within slash communities, new norms or ways of writing have emerged that are widely accepted without much question. Two such creations are male pregnancies (mpreg) and women with male reproductive parts (G!P), either permanently or in lieu of periods. While not all slash readers enjoy, or even accept, these mystical deviations, a subsection of slash producers and consumers have coalesced around these biological anomalies. While there is no record of when such narrative devices first emerged or became common knowledge in different fandoms and online communities, they are no longer only posted on fetish or kink sites. One explanation is that they came from fandoms with supernatural source texts, i.e. Harry Potter or Star Trek. Within a supernatural context, both of these tools can make sense and through their continued reproduction in supernatural fanfics they could have become accepted and spread throughout different fandoms. Additionally, their popularity could be explained by the prevalence of heterosexual girls writing slash fan fiction. By allowing one partner of a same-sex relationship to have natural reproductive abilities, heterosexual female authors can still act out relationship fantasies with childbearing remaining a natural option”.

Kristina Busse also had a chapter on fan fiction in Anne Jamison’s 2013 book Fic: Why Fanfiction Is Taking Over the World. She noted that:

“Mpregs come in all shapes and sizes and, as a result, can fulfil a vast variety of fan desires: a romantic need to create a love child between male lovers, an interest in pregnancy’s emotional and physical fallout on a partnership, or even a fascination with the horrors of forced breeding…mpreg allows a female writer to play out themes of female bodies, concerns of gender in relationships, and issues of reproduction. And she can interrogate all these ideas in a setting that allows for a certain emotional distance by divorcing the pregnancy from the female body. At the same time, one of the criticisms of mpreg is that it often replicates rather than critiques the portrayal of women by embracing stereotypical gender roles”.

Based on my own brief research into the topic, there doesn’t appear to be any empirical evidence as to the popularity or prevalence of individuals’ involvement in mpreg fetishism. Reading about mpreg doesn’t itself mean that readers have a fetish concerning it although membership of online forums suggest small but dedicated communities that love all things mpreg.

Dr. Mark Griffiths, Distinguished Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Aggrawal A. (2009). Forensic and Medico-legal Aspects of Sexual Crimes and Unusual Sexual Practices. Boca Raton: CRC Press.

Busse, K. (2013). Pon Farr, mpreg, bonds, and the rise of the omegaverse. In A. Jamison (Ed.), Fic: Why Fanfiction Is Taking Over the World (pp. 316-322). BenBella Books.

Busse, K. & Lothian, A. (2018). A history of slash sexualities: Debating queer sex, gay politics and media fan cultures. In: Smith, C., Attwood, F. & McNair, B. (Eds.). The Routledge Companion to Media, Sex and Sexuality. Oxford: Routledge

Gates, K. (2000). Deviant Desires: Incredibly Strange Sex. New York: RE/Search Publications.

Lady Geek Girl (2012). Sexualized Saturdays: Male pregnancy in fanfiction. October 13. Located at: https://ladygeekgirl.wordpress.com/2012/10/13/sexualized-saturdays-male-pregnancy-in-fanfiction/

Love, B. (2001). Encyclopedia of Unusual Sex Practices. London: Greenwich Editions.

Mamiverse (2015). 10 kinds of sexual fetishism that make you say WTF? April 12. Located at: http://mamiverse.com/crazy-forms-of-fetishism-90424/7/

McCoy, S. (2016). Mysogyny and the fetishization of queer identities in fan fiction. WattPad.com. Located at: https://www.wattpad.com/692573853-misogyny-and-the-fetishization-of-queer-identities/page/8

Scorolli, C., Ghirlanda, S., Enquist, M., Zattoni, S. & Jannini, E.A. (2007). Relative prevalence of different fetishes. International Journal of Impotence Research, 19, 432-437.

Villarreal, D. (2016). 5 videos of sexy men pretending to be pregnant. The Hornet, April 28. Located at: https://hornet.com/stories/5-videos-of-sexy-men-pretending-to-be-pregnant/

Villarreal, D. (2019). 10 unusual fetishes and their psychology, from sploshing to male pregnancy. The Hornet, March 19. Located at: https://hornet.com/stories/10-unusual-fetishes/

Yatrakis, C. (2013). Fan fiction, fandoms, and literature: or, why it’s time to pay attention to fan fiction. College of Liberal Arts & Social Sciences Theses and Dissertations. 145. https://via.library.depaul.edu/etd/145

Blown away: A beginner’s guide to inflation fetishes

In previous blogs I have briefly mentioned various forms of inflation fetishes. In my blogs on fat fetishes and alvinophilia (belly fetishism) I noted that some fat admirers encourage their sexual partners to engage in inflation activities (where individuals inflate their abdomen with air or liquid so their abdomen is distended). Belly inflation is part of the wider practice of body inflation, and involves the practice of inflating (or sometimes pretending to inflate) a part of one’s body typically for sexual gratification. For some, this may be connected with sexual arousal from the receiving of enemas (i.e., klismaphilia). According to a Wikipedia entry on fat fetishism:

“Inflation refers to the practice of inflating (typically with air or liquid), until the abdomen is distended, in such a way that it simulates a stuffing or bloating, but without food”.

In my blog on scrotal infusion I described the sexual practice in which fluid (usually saline solution) is injected into the scrotal sac as a way of making it balloon in size (which is why the practice is sometimes referred to as ‘ballooning’). A very similar practice is scrotal inflation in which air (or other gases) are injected into the scrotal sac. As I noted in my previous blog, both scrotal infusion and inflation are potentially dangerous, and individuals engaging in such acts are at risk of scrotal cellulitis, subcutaneous emphysema, Fournier’s gangrene (a type of necrotizing infection or gangrene usually affecting the perineum), and/or air embolism. As far as I am aware, there is no academic or clinical research on the practice although there are a number of websites dedicated to this practice (e.g., http://www.bodyinflation.org/). Here are a few online accounts I came across:

Extract 1: “Ever since I was pregnant, I constantly fantasized about having that big round belly again. I used to watch pregnant porn and try to push my belly out and rub it but obviously wasn’t the same. I recently came across inflation. I never heard of it before nor thought it was possible, and it turned me on so much. I just tried air inflation with a fish pump for the first time yesterday, and it was such an amazing feeling to have a hard tummy again. I rubbed it up and down it was amazing but it was a bit crampy at times. I loved the pressure, my tight belly…I know I’m going to have to practice at it more…I want to get to a point were my belly looks pregnant with out all the cramping…I haven’t been able to talk about this to any one nor my husband. I think he’d find it extremely weird”.

Extract 2: “I have an inflation fetish myself. Every now and then – which is starting to become daily – I usually inflate my stomach with air or water. I occasionally chug [almost] a gallon of milk or water with salt in it – chugging too much water can be poisonous, so always put some salt in it to balance your electrolytes. I find it very arousing to get a rock-hard stomach and I want to continue to make my stomach bloat bigger and rounder, yet maintain my abs. It’s a fun challenge”.

Extract 3: “I have the same fetish. I’m a gay guy, and I prefer belly expansion in particular. I think this fetish is somehow tied to the weight gain fetish that the internet and media has exposed in recent years. I, too, have a weight gain fetish. However, I enjoy helping or watching a partner partake in weight gain, but not myself. Getting back on the subject, though I do enjoy inflating myself. Whether it be through bloating with water, air enemas, or water enemas. Water enemas have become my personal favorite method, plus they’re actually healthy and cleanse your colon. I have noticed a lot of people with similar fetishes though. Everyone has their own niche of what turns them on”.

Obviously I can’t verify the veracity of the claims made by these individuals but assuming they are true and accurate admissions, they demonstrate that inflation fetishes exist and that there appear to be overlaps with other sexual fetishes and sexual paraphilias (such as fat fetishes). However, we know nothing about the incidence, prevalence, and the development of the fetish. In one of the many online fetish lists, one of them on the Thumbpress website (’10 strange fetishes that don’t make sense’) said that one of the inflation fetishes (‘air pumping’) was “quite disturbing…perhaps as disturbing as klismaphilia” and involves pumping air into the anus to the point that it expands the belly. The website’s critique was the practice was “unhealthy, dangerous and ridiculous”. On another fetish list on the Cracked website (‘5 ridiculous [safe for work] fetishes’), the article notes that:

“[Inflation fetish] is kind of like the balloon fetish, but with a fun twist. Instead of blowing air into a party favor, you stick a bicycle pump inside your danger zone and inflate your own body until you feel like you’re going to burst. You get the farts for hours after you do it, and these guys talk about that like it’s a plus. Normal people get a stomachache after swallowing air and trying to burp, so we think it’s pretty easy to see what these guys are going through. Besides having massive online communities dedicated to the practice of filling tummies with air, there are also millions (OK, tens) of YouTube accounts whose sole purpose is to show videos of stomachs growing slightly larger”.

One aspect of air pumping that should never be attempted is vaginal air pumping. On one sexual ‘agony aunt’ website (Go Ask Alice), one man asked whether blowing air into his girlfriend’s vagina could kill her. The response by ‘Alice’ asserted:

“Yes, it’s a true but very rare occurrence. When air is blown or forced directly into a vagina – without allowing any air to escape – an air embolism (the abnormal presence of air in the cardiovascular system) could form, which can be fatal. Women who are more at risk for this unlikely possibility are those whose pelvic vessels are enlarged (meaning, increased blood supply to the vagina) due to a condition such as trauma and possibly pregnancy. So, if a very large amount of air were to be blown or forced into their vaginal canals, it’s possible that the air could enter their bloodstream, causing a blockage in a blood vessel. As a result, some of these women, perhaps including the pregnant women’s fetus, may experience complications. In extraordinary cases, some of these women (and the fetus) may die if the embolism travels to the heart or lungs”.

The lack of empirical research into inflation fetishes is either because they (i) are viewed by the academic and clinical communities as a trivial research topic, or (ii) have not (as yet) caused any problems among its adherents. If papers do end up being published it may be as a result of when things go horribly wrong (i.e., someone dying).

Dr Mark Griffiths, Professor of Gambling Studies, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Aggrawal A. (2009). Forensic and Medico-legal Aspects of Sexual Crimes and Unusual Sexual Practices. Boca Raton: CRC Press.

Cipriano, A. (2009). 5 ridiculous (safe for work) fetishes. Cracked, March 17. Located at: http://www.cracked.com/article_17149_5-ridiculous-safe-work-fetishes.html

Encyclopedia Dramatica (2012). Fat furry. Located at: https://encyclopediadramatica.se/Fat_furry

Thumbpress (2011). 10 strange fetishes that don’t make sense. April 20. Located at: http://thumbpress.com/10-strange-fetishes-that-don’t-make-sense/

Wikipedia (2012). Body inflation. Located at: http://en.wikipedia.org/wiki/Body_inflation

Wikipedia (2012). Fat fetishism. Located at: http://en.wikipedia.org/wiki/Fat_fetishism

Called up for navel duty: A beginner’s guide to alvinophilia

Alvinophilia – according to Dr. Anil Aggrawal in his 2009 book Forensic and Medico-legal Aspects of Sexual Crimes and Unusual Sexual Practices – is a sexual paraphilia in which individuals derive sexual pleasure and sexual arousal from the navel and bellies (although he refers to it as ‘alvinolagnia’). He also notes that:

“[Navel fetishism is] a strong attraction to the human navel (often called the belly button). Navel fetishists are sexually aroused by viewing, licking, tickling, sucking, sniffing, or kissing the navel of another person, or by having any of this activity done to their own navel by partner or to a lesser extent, by themselves. Some navel fetishists engage in outercourse (non-penetrative or dry sex as opposed to intercourse) involving the navel. Navel fetishism often co-exists with stomach fetishism”.

I have yet to come across a proper definition so for the purposes of this blog but some sources say it includes any sexual pleasure or arousal from any aspect of a belly or a navel (but this particular blog will just examine bellies as including navels will take me into the whole world of body piercing which I will leave for another blog).

I have only come across one academic paper that makes a specific reference to ‘alvinophilia’ and that was a study led by Dr G. Scorolli (University of Bologna, Italy) on the relative prevalence of different fetishes using online fetish forum data. I have made reference to this study in previous blogs on paraphilias such as lactophilia, mysophilia, and stigmatophilia. It was estimated (very conservatively in the authors’ opinion), that their sample size comprised at least 5000 fetishists (but was likely to be a lot more). They reported that some of the sites featured references to belly and/or navel fetishes (3%). However, there was no further information as to whether the belly/navel fetish was connected to piercing, pregnancy, and/or belly inflation.

In a previous blog, I looked at fat fetishism. Obviously belly size is one of the most important aspects of a fat fetishist’s sexual focus. Many fat admirers are ‘feeders’ who deliberately over-feed their sexual partners (i.e., ‘feedees’) on their way to becoming a ‘big beautiful woman’ (BBW). Within the context of their sexual relationship, feeders obtain sexual gratification from the encouraging and gaining of body fat through excessive food eating. For many, it is the increasing stomach size that becomes the primary sexual focus. The bigger the stomach, the more sexually aroused the feeder becomes.

There are also fat fetishists who are turned on my ‘gut-flopping’. This involves masochistic elements involving female domination (“femdom”) and has to be seen to be believed. In an article on the world’s strangest fetishes, the Pop Crunch website reported:

“Femdom + masochism + BBW = gut flopping. A heavily obese woman comes up to you, usually on all fours, and drops her belly on you with full force. It combines the pain and control of your run of the mill dominatrix with the obsession and fetishization of fat that accompanies chubby chasers and feeders. The scariest thing about this fetish in particular, is the potential for damage. These ladies are large. Their stomachs are large. They’re hitting your back with a significant amount of speed and force, and you’re in a position where there’s not much support. Imagine someone dropping a bag of oranges on your back, while you’re in that position. Yeah…that’s all kinds of screwed up”.

It would also appear that another behaviour related to alvinophilia is pregnancy fetishism (i.e., maieusiophilia). In a previous blog I outlined the various attractions of maieusiophilia including belly size. Some maieusiophiles prefer an abdominal bump that is “just showing” whereas others – seemingly the majority of maieusiophiles – prefer “the bigger the better”). As I also noted in that article, for a small minority, the belly is so big that all thoughts are fantasy-based as the source of sexual arousal can become “a belly with a girl attached”. In fact, one online website (Bastion Works) claims that some maieusiophiles “have been known to enjoy the concept of stomachs grown to the size of vehicles, buildings, or even planets”. This would seem to indicate that there is a crossover with macrophilia (which I also examined in a previous blog).

There is also a related sexual fetish that involves belly inflation which I would argue is subsumed within alvinophilia. Belly inflation is also part of the wider practice of body inflation, and involves the practice of inflating (or sometimes pretending to inflate) a part of one’s body (in this case the belly), typically for sexual gratification. For some, this may be connected with sexual arousal from the receiving of enemas (i.e., klismaphilia). There are a number of websites dedicated to this practice such as the Body Inflation website. Here are a few online accounts I came across:

Extract 1: “Somewhere in my pre-teen years I became captivated with the look of full, pregnant-like bellies and began “experimenting” with large balloons under my shirt and pants. Then after noticing the female profile of very pregnant models wearing girdles and pantyhose in mail order catalogs, I got a girdle. One night I placed a large punching type balloon between it and my belly and started pumping up the balloon until it was incredibly huge. Needless to say I was really hooked now! Then I became curious about actually trying to inflate my belly; and so one night inserted the pump hose and soon I had my abdomen pumped up rock hard. Now I was even more hooked. Over the years I experimented with using water until today – some 40+ years later – I now regularly ‘fill-up’ with 2+ gallons of saline water, creating an incredible very pregnant looking profile. Why do I do it, well I guess it’s the incredible rush that I get every time!”

Extract 2: “I have an inflation fetish myself. Every now and then – which is starting to become daily – I usually inflate my stomach with air or water. I occasionally chug [almost] a gallon of milk or water with salt in it – chugging too much water can be poisonous, so always put some salt in it to balance your electrolytes. I find it very arousing to get a rock-hard stomach and I want to continue to make my stomach bloat bigger and rounder, yet maintain my abs. It’s a fun challenge”.

This next one makes a connection between fat fetishism, feeders, and belly inflation:

Extract 3: “I have the same fetish. I’m a gay guy, and I prefer belly expansion in particular. I think this fetish is somehow tied to the weight gain fetish that the internet and media has exposed in recent years. I, too, have a weight gain fetish. However, I enjoy helping or watching a partner partake in weight gain, but not myself. Getting back on the subject, though I do enjoy inflating myself. Whether it be through bloating with water, air enemas, or water enemas. Water enemas have become my personal favorite method, plus they’re actually healthy and cleanse your colon. I have noticed a lot of people with similar fetishes though. Everyone has their own niche of what turns them on”.

Given the lack of research into alvinophilia, online accounts such as the ones above are about all that academic theorizing has to go on. This is definitely an area that the research community would benefit from knowing more about.

Dr Mark Griffiths, Professor of Gambling Studies, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Aggrawal A. (2009). Forensic and Medico-legal Aspects of Sexual Crimes and Unusual Sexual Practices. Boca Raton: CRC Press.

Bastion Works (2012). Maieusiophilia. Located at: http://bastionworks.com/Mikipedia/index.php?title=Maieusiophilia

Gates, K. (1999). Deviant Desires: Incredibly Strange Sex. Juno Books.

Pop Crunch (2010). The 17 Most WTF Fetishes Imaginable. May 11. Located at: http://www.popcrunch.com/the-17-most-wtf-fetishes-imaginable/

Scorolli, C., Ghirlanda, S., Enquist, M., Zattoni, S. & Jannini, E.A. (2007). Relative prevalence of different fetishes. International Journal of Impotence Research, 19, 432-437.

Swami, V. & Tovee, M.J. (2009). Big beautiful women: the body size preferences of male fat admirers. Journal of Sex Research, 46, 89-96.

Terry, L.L. & Vasey, P.L. (2011). Feederism in a woman. Archives of Sexial Behavior, 40, 639-645.

Wikipedia (2012). Body inflation. Located at: http://en.wikipedia.org/wiki/Body_inflation

Wikipedia (2012). Pregnancy fetishism. Located at: http://en.wikipedia.org/wiki/Pregnancy_fetishism