Breast physcis question

Well, it seems like there's no mammophilic Newton among us, alas. Or maybe he'll emerge now that you've prepared the ground, yowser?
 
I admit to some disappointment after reading the thread title, and then the discussion, since it seemed possible that 'breast physics' might go beyond debate about mass and volume, and the technicalities of measurement standards.

Forgive me for this entry in one of my early tales:

(Subject, my friend Lenny's high school heartthrob, Brenda, playing on her high school basketball team)


Watching her drive to the basket in practice and launch towards the hoop was inevitably arousing however. We watched her breasts bounce up and down as she ran the court, as they were poorly restrained by the primitive sports clothing for women athletes back then. They moved around something lovely under her gym-shirt.

When she rose with a jump-shot to send the ball towards the rim, her soft twin orbs would veer upward with the leap and back down again when she landed.

This prompted all sorts of physics discussions later between us: Newton's laws of motion, the actual mass of her boobs, how we might manage to calculate the actual mass of her boobs, boob density, spheroid shape deformation in movement, and so on.

I think we even contemplated some experiments to measure her breasts' angular velocity, using her nipples as data reference points and plotted spatially on two reams of graph paper. We figured we would have to do this experiment with our subject topless however, if we were to get truly accurate data.
If you have three large-breasted topless women sitting very close together, can you create a Newton's Cradle effect? Hm...

On the subject of fruit comparisons, I bought an enormous pomegranate the other day. Bigger than a Bramley apple.
 
I've always thought the term "bolt-on" is wonderfully descriptive. Some people are really into that, and it nicely captures the artificial aspect of that sort of breast.

I like fruit because fruit are tasty and appealing, and give you some indication of size. You can leave it to the reader to guess the rest.

Sometimes, with breasts, I don't think you need a physical description so much as a suggestion. For instance, I remember a line from Bernard Malamud's novel The Assistant where a young man is peeping at a woman disrobing in another room. The line was "Her ass was like a flower." (maybe the word "like" wasn't in there). Now, of course, that says very little about what it actually looked like, but it's an interesting suggestive line that indicates that it's attractive to the man. He's not an educated man, so it wouldn't make sense to use high-sounding prose to describe how she looked to him. I thought "flower" worked well for the character and for the scene.

You could have a truly wonderful bad-writing contest based on something like this. Something like, "He unhooked her tight-fitting bra, and her breasts galloped forth like horses from a barn on fire."

My favorite breast description from a movie was from The 40 Year Old Virgin, where the character played by Steve Carrell gives away his secret to his friends by describing a woman's breast as being like a bag of sand.
 
There are a number of free calculators available on the internet to help you figure this out, though.

Other than that I find the fruit comparison trite and slightly goofy (apart from inaccurate as no [natural] breast does actually look or feel like a cantaloupe, for example), which is why I would decidedly advice against it.
Here's a newsflash for you. We write erotica, we're not writing for the Scientific American. Erotica for many people-obviously not for yourself-is written for fantasy, in the spirit of fun, and often-unlike you-doesn't take itself too seriously. Is fruit technically accurate? Maybe not, I say maybe because I don't obsess about what I know or don't know about women's breast sizes. However, would readers here get a visual and idea by using a smaller or larger piece of fruit? Probably.

Being that I'm in the crowd of not getting crazy with statistical measurements or being overly descriptive, I use language that lets the reader use their definitions. Ample, sizable, I've gone as simple as having the MC simply tell the woman her breasts were amazing.

Most of us don't need links and calculators, most of us have imagination, and even more of us aren't pretentious posers who like to talk down to people. Never fails to amaze me how full of themselves some people are on a free sex story site.
 
I never used bra sizes in any of my stories. I may do one day for comedy effect.
It does surprise me that a writer should insist that sizes are essential for describing boobs, when they don't tend to write the description like that themselves... 🤔
Perhaps just point scoring rather than adding to the debate.
 
even more of us aren't pretentious posers who like to talk down to people. Never fails to amaze me how full of themselves some people are on a free sex story site.
Do... Do you ever go back and read the things you write, here? I don't think I've seen a thread where you've failed to talk down.

Including talking down to someone who just finds the exploration of something like math and physics of an object to be fun. Just... Let it be fun.

On that note - breasts are semi-solids with greatly varying densities that don't really seem that tied to size. They seem kinda like historic records of diet, over a long period of time. The subtleties of their movements may not reflect a person's current overall shape or size. If you go up or down a few sizes, the fullness lags behind by a year or two. So drop a dress size, and the breasts might have more momentum from being denser, than you might expect for their size. Which might lead you to some of the more embarrassing or hilarious moments to write. Like getting slapped in the face when you run down the stairs. Or catching your breast when you quickly squeeze your elbows in by your sides.
 
. Just... Let it be fun.

On that note - breasts are semi-solids with greatly varying densities that don't really seem that tied to size. They seem kinda like historic records of diet, over a long period of time. The subtleties of their movements may not reflect a person's current overall shape or size. If you go up or down a few sizes, the fullness lags behind by a year or two. So drop a dress size, and the breasts might have more momentum from being denser, than you might expect for their size. Which might lead you to some of the more embarrassing or hilarious moments to write. Like getting slapped in the face when you run down the stairs. Or catching your breast when you quickly squeeze your elbows in by your sides.
Or tit slapping some random passer by and they never saw it coming ...
 
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