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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., 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:

Encyclopedia Dramatica (2012). Fat furry. Located at:

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

Wikipedia (2012). Body inflation. Located at:

Wikipedia (2012). Fat fetishism. Located at:

Everything’s swell: A brief look at scrotal infusion

One of the more unusual male sexual acts that I have come across while researching my blogs is scrotal infusion (and if you have a minute you could check out my articles on urethral stimulation and rectal foreign bodies). This is a 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’ but not to be confused with balloon fetishism). A very similar practice is scrotal inflation in which air (or other gases) are injected into the scrotal sac. 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. The latter two complications can be potentially fatal particularly among those with HIV. Local nerve damage can also be caused by improper placement of the injecting needle. If there are no complications, the saline injected into the scrotal sac eventually absorbs into the body over a three-day period. Those who inject too much saline into the scrotum discover that the liquid disperses into the abdomen via a small connecting opening.

To date, there have only been a few case studies published in the medical literature. In 2003, Dr. Jeffrey Summers (East Tennessee State University, US), published a case study in the Southern Medical Journal. Summers reported that a 37-year old man turned up for medical attention with a very swollen and painful scrotum.

“[The man] reported that he had always had the impression that his genitalia were smaller than desired, and as a result he had searched the Internet for a solution. He found a web site that supplied him with a “scrotal inflation kit”…Unfortunately, the patient still had enlargement of the scrotum 4 days after the infusion, and it was quite painful…He was initially pleased with the results, but then he developed erythema and pain during the next 2 days…The swelling of the scrotum completely consumed his penis. At 2-week follow-up [following treatment], the patient’s erythema had nearly resolved, and his scrotum was reduced to approximately 20% of its size at presentation”.

In his discussion of the case, Summers noted that “the term scrotal inflation seems to be common in the lay literature” but they could only locate two previous studies relating to gaseous inflation of the scrotum (one paper from 1969 published in the Henry Ford Hospital Medical Journal, and one in 1980 published in American Surgery). The issue most stressed by Summers was that “remarkably, the equipment required for scrotal inflation can be obtained over the Internet without a prescription”. The most recent case was reported by Dr. K.G. Yoganathan and Dr. A.L. Blackwell in a 2006 issue of the journal Sexually Transmitted Infections. They reported that a 52-year old man (white, gay, and HIV positive) turned up at their hospital wanting medical attention for a painful scrotum:

“He had obtained information and a disposable scrotal infusion toolkit from a websiteand had infused 2 litres of normal saline into his scrotum over 2 hours, 3 days previously. He had done this many times before without complications and the swelling had previously resolved over 2 days. On this occasion he sought medical advice because the pain and swelling had lasted for more than 3 days…Examination revealed a grossly swollen, erythematous, tender scrotum suggestive of severe cellulitis…A Prince Albert ring and scars from previous infusions were also noted…Despite the severity of his illness, the patient declined to stop this practice and he was therefore advised on how to reduce the risk of complications”.

The authors recommended that patients should be educated about the dangers of inflation procedures of scrotum and strongly discouraged from doing it. They also said that clinicians should be aware of unusual sex practices and associated possible rare causes of scrotal cellulitis (such as scrotal infusion and inflation). Dr. Brenda Love in both her Encyclopedia of Unusual Sex Practices, and a 2005 book chapter (in Russ Kick’s book Everything You Know About Sex is Wrong) notes that:

“The visual effect of the scrotal infusion resembles a water balloon. Men do not report any pain from this procedure and claim that one advantage is found the next morning when the solution filters into the penis, causing it to swell to the size of a beer can. Men claim exclusive license to this type of sex play. There is no sealed part of the female anatomy that has a hollow sac that lends itself to expansion”

Brenda Love points out that there is much preparation and associated paraphernalia needed to engage in acts of scrotal infusion. Love’s equipment list includes: scissors, first-aid tape, a 20-gauge angiocath/hypodermic needle, a one-litre plastic bag of saline solution, an intravenous pole/hook on the ceiling, plastic tubing, latex gloves, and packaged alcohol prep pads. She appears to provide a first-hand account of an actual scrotal infusion that she either watched or had described in depth to her:

“The saline solution was warmed to body temperature ahead of time. The bag was then held against the inside wrist to determine a comfortable temperature. Incidentally, the temperature is not for the comfort of the patient but rather to prevent the scrotal sac from shrinking, as it normally does when exposed to cold water or ice. This shrinking would hamper the expansion process that is essential for infusion. The bag was hung from a hook and spiked with the tubing, which was then pinched closed, not contaminating either of the ends. The scrotal area was swabbed with the alcohol prep pad, and the needle was inserted about one inch directly below the base of the penis in the middle of the scrotum. The partner waited for a moment to make certain that he had not pierced a vein (evident by blood backing up into the needle); the needle was then taped flat and upright against the top of the scrotum. The tubing was opened and adjusted so that it drained at a rate of about 60-90 cc per minute. The male stood because gravity helps to facilitate the expansion. However, fainting is a natural response, and the person was monitored closely and had a bed or table behind him on which to lie if necessary”.

Most people (including myself) may be puzzled as to why someone would want to engage in the activity of scrotal infusion in the first place. Brenda Love claims in her book chapter that those males who participate in this form of body modification explain that they experiment with such dangerous behaviour to (i) experience different feelings, (ii) to be unique, (iii) for the shock value, (iv) to prove that these are their genitals and they will do with them as they please, and to (v) visually set their genitals apart from all others.

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

Further reading

Bush, G. & Nixon, R. (1969). Scrotal inflation: a new cause for subcutaneous, mediastinal and retroperitoneal emphysema. Henry Ford Hospital Medical Journal, 17, 225–226.

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

Love, B. (2005). Cat-fighting, eye-licking, head-sitting and statue-screwing. In R. Kick (Ed.), Everything You Know About Sex is Wrong (pp.122-129).  New York: The Disinformation Company.

Summers, J. (2003). A complication of an unusual sexual practice. Southern Medical Journal, 96, 716–717.

Wikipedia (2012). Scrotal inflation. Located at:

Yoganathan, K. G.; Blackwell, A. L. (2006). Unusual cause of acute scrotal cellulitis in an HIV positive man. Sexually Transmitted Infections, 82, 187-188.