Do we need intelligence? I think "clever" traits could just give learning bonuses directly to skills with this new system.
Or if we want keep it, maybe make some learning bonus derived from that stat itself, so it's actually useful for something 
It should supplement skills and jobs in the future that would be rooted in intelligence. I think we cannot loose this stat... we need something that defines girls intelect better than traits do (at least imo).
In my mind, stats that we absolutely should have and reasons for having them:
charisma (beauty/ability to use good looks in jobs/daily life, required due to a nature of the game to supplement a LOT of the jobs that we have)
health (obvious reasons, game can hardly function without it)
vitality (characters need to rest. This is the best way of determining when as counters/skills or anything else for that matter is a lot harder to work in our game with than a simple hardcapped stat (I gave this a good deal of thought)).
intelligence (may not be apparent right now, but this will serve us greatly in the future)
constitution: Closest thing we have to strength/endurance.
luck (just because it's a lot of great fun)
Basically I think that our game requires three "MUST have stats that describe the character": Beauty, Strength, Intelligence. Health, Vitality and Luck are there to make game play more fun/coherent.
Others:
character: (if only to serve as "inverted obedience"). We can do without it as it can be handle through flags.
disposition: May not be the best way to handle this, a system of flags/counters may serve us far better but is also likely to mean a lot more work.
fame: This is tricky... and not a clear stat as cannot mean "fame" through out the game world due to being very easy to achieve. This made sense when we only had brothels and before the expansion of game concept took place. Right now I cannot justify this stat as a girl that gained fame as a whore or a stripper should not carry it over if she changes profession to "maid" or "warrior" for example. In fact former "fame" may actually hurt in some cases. This is one stat we may get rid of.
reputation: Same as above... reputation as what? Decent human being (than it should be called alignment/dark or light side or something like that), otherwise wtf reputation is cannot really be determined. Another stat we may get rid of...
joy: I think this is actually working out for us but as Dark said, it may work better as flags/counters (but prolly more work too).
libido: Discussed a bit already, I fail to see the value of this other than adding another level of "checks". I can't really tell if we should keep it or not...
refinement: I believe this to be quite useless. This should be removed as a stat and turned into a skill or skills, at least I cannot clearly see how this is important enough to the game to be a stat or how we're going to use it to make the game fun or game play significantly better.
Mood we will kill.
Battle Skills:
agility (Speed). We don't really need, it's a requirement for BE that we currently have. This could be of limited use during events and if we ever create something like a Thief Guild/Crime Guild to supplement skills during jobs.
attack: This should be a skill (logically) and be supplemented by constitution (it's what passes for Strength in the game) but that would be a bit awkward to work with I expect.
defence: Same as above, also should be a skill and supplemented by constitution.
magic: Same thing but supplemented by intelligence.
mp: Also just for fun/better game play. We could use health/vitality for this (but not gonna

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You're absolutely right that digital sex also includes footjobs and the likes, but I thought it was intentional to unify some skills to get rid of some unnecessary ones.
Yeap, I meant it as a clear point towards naming it "digital".
Either way, I don't really have an opinion on skills other than the ones relevant for sex, but about those I have one thing to say:
Please stop mixing up body parts, sexual orientation and sex types.
I asked for that before (maybe even twice), but I was pretty much ignored.
Vaginal, anal, oral and digital are body parts. Having a skill based on them makes sense, it basically is an indicator for how well the girl can pleasure others with it.
Lesbian (or gay) is a sexual orientation. A skill based on that doesn't make much sense to me, but if you want it in the game then you need a skill for straight sex as well.
Group or BDSM (in this case) are specific sex types or sexual activities. An own skill for every of those does make sense - how well does the character perform in a specific situation - but it would basically mean that you need to have a skill for almost every sex related tag there is. That's a lot of skills.
Try to remember that we've been thinking about this topic in "WM" pattern for two years. Thought patterns are hard to break...
It might make sense to add gay/straight as skills but we could simply check for corresponding traits and using the sex skills that we have.
BDSM I believe should be a separate skill. Otherwise I have no idea how our body parts skills are relevant to bondage at all. Anything in between, we can just use multiple skills.
Group we can use traits + body parts skills (like proposed above for orientations).
It doesn't really matter how many of those categories you want to cover with skills (although I think one is enough), but including a few from each category and ignoring the rest is definitely not good.
Whatever we go with, I agree that consistency in this case is very important.
Now I wonder if we need more narrow skills. Like in SM3, where they have skills from kissing to tribadism.
I am against this... Kissing can be generalized into oral and tribadism into vaginal. It's easier to work with, narrow skills are obviously more precise but prolly also costly in terms of dev time and balancing.