Seems that visible penis bulges may be somewhat natural as well.
Never worn a speedo, I think it'd be somewhat awkward. I'm surprised with a giant bulge sticking out it's not indecent exposure.
On a separate note, BigMeatNJ that was your 666th post, hail.
Women's breasts bulging naturally isn't indecent exposure, provided that there is some publically acceptable coverage of them. A woman's bulging pregnant belly certainly isn't indecent exposure, but quite natural and to be expected and encourage, for the natural enlargement of the human race for the greater good of the many.
Even breastfeeding in public isn't "indecent," as obviously babies have to be fed.
But are speedos indecent? Supposedly not, say current community standards in some places, such as around the swimming pool. But some evangelist did raise the question, what's the difference between underwear and current swimwear? Color I believe, was probably the answer. Some people apparently may think that current swimwear is too skimpy. When I was younger, I sort of thought that a swimsuit that is cut so as to show off an inch or a few inches of a person's butt-pad was "indecent." But since then, I don't think it's really so "black-and-white." While I don't like the "dental floss" thongs, as if the object is to see how little one can get by with, wouldn't it simply look better to swim naked?, that's probably the idea somewhat, that maybe to many people, it does feel better to "swim naked," and so swimwear may tend to be "minimal" without trying to make it look like a big "show off" sort of deal. Thus, some butt-pad and breast cleavage may seem appropriate to many people? Sure, there should be "some" coverage, but probably not to making women wear long dresses to go swimming, as in the prudish past.
It seems that it's natural for people to be naked, but generally not too much so in public places, as we see in the example of the not-so-innocent-anymore Adam & Eve being given animal skins by God to wear, after they had sinned. Interesting to note, that before they partook of the forbidden fruit, they were naked and didn't even seem to notice that they were naked. Ever since, due to our natural sexual lusts, we generally have to wear some clothing in most public places.
It wasn't all that many decades ago, that it was common I hear, for people to swim naked, but part of the reason for the change away from that, would seem to be that the world has become a lot more populous, and swimming most everywhere is co-ed now. Now skinny-dipping seems to be some sort of "perverted" thing, while in the past, perhaps due to people lacking all the swimwear we have today, people just took off their clothes to go swimming. And I expect that boys probably went swimming quite a bit more than the more "dignified" ladies? The ol' swimming hole or river or whatever, was perhaps more remote back then, before human populations naturally swelled, and the city grew all around, and the "swimming hole" became the crowded community swimming pools.
And if bikinis are okay, then there should be nothing at all wrong with a very visibly pregnant woman in a bikini either. That is the natural function of reproductive organs to grow babies inside, and there should be nothing "shameful" about that.
Human population growth is beautiful, as it allows all the more people to experience life.