THE MALE FUPA GUIDE
What they are, how to get one, what it MIGHT do to you and those you love
Note: this does not constitute medical advice. I am a lawyer with an understanding of anatomy and forensic science. I have no medical training or formal scientific training.
1. The name
The term I use is “FUPA”. In some medical literature it is a “suprapubic fatpad”. I have seen it referred to by other names. I particularly like “junk-chunk”. I think that most people who have ever thought about FUPAs for any length of time have concluded that we have no satisfactory, everyday word for them.
2. What it is
It is a lobe of fat that appears beneath the abdominal crease. It may extend as far down as bottom of the scrotum. Generally the area that we are considering, though, is the fatty covering of the pubic bone.
3. How to get one
To get one, put on fat. The kind of fat you’ll need to gain is subcutaneous fat, and in the correct location. This is influenced in large part by genetics, but all is not lost if genetics do not favour you.
There is some evidence that you can shift from visceral fat deposition to subcutaneous fat deposition. A diet high in fat, as opposed to carbohydrate, induces less of an insulin response, and less visceral fat storage. The likelihood of that fat being deposited subcutaneously increases, as correspondingly, the likelihood of the it being deposited into the suprapubic lobe increases.
Additionally, even if you happen to gain a lot of fat viscerally, once your body reaches the point of having packed out your abdominal cavity with visceral lard, it seems to shift to increasing subcutaneous fat deposition.
So, even if you start off with the “wrong shape” for a FUPA, it doesn’t mean it won’t happen.
4. FUPA growth
Apart from people who are blessed with naturally big FUPAs, most of us will see slow growth at first, and then sudden growth once we reach a tipping point. There are a few reasons for this.
First, the suprapubic fat lobe is influenced by surrounding fat. As the belly grows, it pushes down and out on the FUPA, increasing its projection. Additionally, as the thighs fatten, they swell out and (somewhat) upwards, also increasing FUPA projection.
The process of gaining weight in the lower abdomen also affects skin tension. The fatter you get, the more your flesh tends to hang.
These effects are small at first, but combined with a slowly growing suprapubic fat lobe, can produce a runaway train effect on FUPA growth.
5. Measuring the FUPA
Put a measuring tape above the base of your penis against the pubic bone. Measure out how far the FUPA projects.
I’ll use the following classifications:
< 1 inch: minimal projection, does not contact penis basis
1-2 inches: Moderate projection; may partially contact penis base during movement
2-3 inches: Likely partial coverage
3+ inches: Significant fold; can fully obscure the base
6. FUPA Mechanics
This is the fun part. Note that it is not always possible to isolate the effect of the FUPA from surrounding fat in the belly and thighs.
FUPAs have a variety of possible effects. Not everyone will experience all of them. Some of the effects seem contradictory at first.
First, the FUPA will almost inevitably increase temperature in the area. A warmer environment may make your nerve endings more sensitive. The effect progresses as the FUPA grows. Even a moderate projection will produce this effect.
Secondly, as FUPA projection increases, it has the effect of pulling penile flesh forwards. For the uncircumcised man, this can result in the foreskin feeling especially fleshy, and actually impede erection, as the penis may feel tight and trapped. This may increase sensitivity or stimulation in some people. In others it reduces it. Even a moderate projection will have an effect on penile flesh.
Thirdly, the presence of a large FUPA generally contributes to reduced bloodflow to the penis, producing softer and shorter erections. Even a small FUPA can have a significant effect here; conversely, there are some men getting around with a two-pound fleshlight enveloping their dicks, and seem to have no problem with engorgement.
Fourth, the FUPA may, at around the moderate stage, begin to have an effect on the dorsal nerve. The dorsal nerve tells your brain what your penis is feeling. What exact effect it has varies, depending on the rest of your surrounding fat and your posture, but light contact, such as happens during movement, often produces sensations of tingling or electric flashes; some postures, such as sitting, leaning forwards, can also produce a burning sensation or numbness. What the effect is varies from person to person, but tingling sensations, and sometimes electric flashes, are often experienced as intensely pleasurable.
Paradoxically, involvement of the FUPA on the dorsal nerve generally results in a *reduction* in actual sensitivity to stimulus to the penis. Why would it be pleasurable in that case? I liken it, in my lay understanding, to the feeling we all have had of our arm just starting to fall to sleep. When that happens, our hand might be buzzing and tingling - and felt in a sex organ, that is intensely pleasurable - but if we actually touch our hand, it will be slightly numb.
Fifth is actual contact by the FUPA on the penis. This tends to occur only when there is a significant FUPA of greater than 3 inches. Most men seem to experience a reduction in sensitivity to lighter contact, and less-favourable angles for penetration. However, some men find an increase in sensitivity to firmer touches, and a sensation of enveloping heat and fulness during orgasm.
Putting all of these things together, there are many variables. Some will operate to reduce sexual pleasure. Some will operate to increase it. Whether the net effect is that it increases your pleasure is something that will be unique to you, and depend on how you prefer to fuck.
7. My own experience
My own body began to fatten with a big visceral deposit. The rest of my frame was somewhat muscular. I didn’t really have much of a FUPA until I hit 300 lbs.
Starting at around 350 lbs, I had a moderate FUPA. It grew rapidly to cover my shaft, up to the head of my penis, by around 400 lbs. This coincided with starting insulin therapy for T2 diabetes, AND with having swollen my abdominal cavity with as much visceral lard as I could handle: I was due for some subcutaneous fat growth.
By 400 lbs, I noticed significant reduction in the hardness and duration of erections, and also the gathering of a knob of foreskin flesh that hung off the tip of my penis when soft. When I was erect, I found it quite tight on my penis, and it could become uncomfortable.
I also experienced a really blissfull sweet dorsal nerve sensation. Basically if I sat upright and gently rocked back and forth I could feel a divine buzzing through my dick. I’d regularly stretch my gut out whilst doing that, and find that I was dripping precum by the end of it.
I got used to not using my dick for penetration. I was too big and unwieldy to thrust for long, and with the smaller and softer erections, coupled with the awkwardness of a tight foreskin, my sexual activity tended to focus on overeating and masturbation or oral sex.
My opinion was that this form of sex, involving gorging whilst enjoying my tingling, throbbing dick, was far better than regular thrust-climax-cooldown sex.
