Serber went down just as I was getting started, so this isn't up to my standards, but here's an alternate to the "nearly ideal cute male" concept.
I really am using a logic here based on these experiments
>>3788908 >>37889231. "average male" generation was nude except for a thong -> "extremely cute male clothes" generation included briefs -> I decided on briefs as a prompt. I actually was trying to jockey a bit to make sure they looked like briefs, but I kept getting thongs and did think the body looked good on the one I posted.
2. "average cute male", after much wrangling, gave a blond otokonoko -> "extremely cute male" gave an otokonoko catboy, with brown hair. Why did I use blond? Well, out of all the generations I did, only "average cute male" and "extreme male" had blond hair, while every other generation had pale skin and brown hair, making blond hair the rare exception, and (if you believe these algorithms represent some sort of mass opinion) not only the average hair of a cute male, but, if you interpret "extreme male" as "extremely masculine", blond hair would be the most masculine hair color. This isn't an invitation to a debate on this btw, this is just how I interpreted my "extreme male" generation having blond hair. If "extreme male" had spat out blue hair I might have considered that for the hair color instead.
3. Tan skin colors are obviously an exception: none of my generations had darker skin tones. This makes it a rare choice.
4. There's nothing much hotter than a male in nature.
5. I did have "moe" as a tag. The goal was cute/male, and I was satisfied with the athletic musculature. I suppose I don't believe it's either a big penis, nor a gruff face, that truly make the man.
This is obviously not really well thought out, or actually very logical, but I decided to generate a character with as many rare and "extreme" cute qualities as I could while maintaining what I see as maleness.
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