I decided to give a quick self-reflection score to Kaho Shibuya...
Sexiness: 85/100 (best tits by my standards, though her butt is average; her skills are good at least in most areas, but she might be overdoing her reactions)
Cuteness: 65/100 (I followed her on Twitter for some time even, though you might have guessed that I have this mixed attitude towards her: "she has such perfect tits that if she ever gets a husband, and a baby, then I'll do my best to forget about her)
Beauty: 65/100 (I mean, to be honest, I don't think Momo and Kaho are that far from each other in this regard, but I still like Kaho's looks better)
Total: 71.7/100
Seems quite strict, right? But at the same time, it's interesting. Like, I don't really know a Western pornstar, for example, who would be very high on all three of the metrics
And just to give you some examples of those whom I find really beautiful: Kaise Anju is like 80/100, Natalia Vodyanova is like 80 to 85/100 when she looks her best, and Rose Leslie (specifically as Ygritte, in GOT, with red hair and freckles, which are one of my fetishes) is like 90/100. So, yeah, I guess it goes to show that I find a lot of Western girls more beautiful, but the Japanese are more cute more often
I gave it a little more thought, and I now think that there is an important metrics missing here, even though it's not about appearance per se: if we think about it in terms of porn specifically, sexiness is not just about looks, it's also about performance. I thought about it when Rion came to my mind: i think she has one of the best tits in the biz, and she is obviously pretty to beautiful, but she seems to be aiming to get by on her voluptuousness alone, not putting in a lot of effort action-wise (i.e. a sexy bod but a shitty lay)
So, if we update the metrics in accordance with that and apply those to Rion...
(v1.1)
Sexiness (from "doesn't make my D move even a bit" to "raging instant boner"), consisting of
- Sexual appeal (the "three sizes", the "(potential) porn energy", the "carnal part of the charisma", i.e. the "animal magnetism" and all that)
- Performance (how good she is as a sexual partner; roles can be different, but I think we can agree that still, there are "bad lays" and "good lays"... and then there are beasts like Hamasaki Mao, who has not just potential but actual porn energy going very high)
Cuteness (from "I don't care what happens to her" to "I want to protect her with all my might")
Beauty (from "ugly", though it's all subjective and mean, to plain-looking, to pretty, to beautiful, to divine)
RION:
Sexiness: 75/100 (appeal), 50/100 (performance), and I'm very generous with this one because I haven't watched much of her works... since the ones I have watched are quite boring
Cuteness: 60/100; surprisingly to myself, she is not that cute; she's one of those rare Japanese girls who are more about sexiness and beauty
Beauty: 75/100 (again, I would say that most people around the world would call Rion beautiful, myself included)
Total: 65/100
(This seems quite on point actually, since I would definitely put her considerably higher overall than Momo, yet considerably lower than Kaho)