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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:

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

Pop Crunch (2010). The 17 Most WTF Fetishes Imaginable. May 11. Located at:

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:

Wikipedia (2012). Pregnancy fetishism. Located at: