In Reply: "One suggestion though: if you get a penalty to saves for [Arousal] type spells, how about increased caster level or save DC's on spells of that type you cast in that state? Sort of a "fueled by your own lust" kind of thing."
I like DbS's take on it.
In Reply: "Some very good contributions, Vrayven. It's nice to know that we're not taking up the mantle alone! I think that your descriptions of the status conditions are extensive, applicable to all conditions and as concise as they could be - in short, I'm willing to run with them as they are. I look forward to anything else you can come up with!"
:

: Why thank you. I appreciate the compliment and the encouragement. And in that case...
As far as the Arousal System goes, I'm in favor of something that mimics the Hard Focus rules. Whilst this might rely on a chart, it remains one of the most versatile methods to use, and when you get down to it, the chart isn't ever really used that much. (And many skills have a DC chart of their own, they just don't explcitly lay it out in chart format).
I think the mutli-stat Prowess check is an excellent idea.

A couple of things that need to be addressed by the core mechanic for arousal:
1) Is masturbation simply a prowess check against the self? If so, shouldn't a character be able to try and please both himself and a partner (or mutliple partners?) in a round? If so, how? What mechanic and mutliple action resolution do we use?
2) How is prowess opposed? By an opposing skill check (ala two tantric masters trying to out do each other with intricate manipulations of the hands and such) or do we use a Fortitude or Will save (such as holding off the sensations metally or phyiscially).
3) We need modifiers and sygnery bonuses. What does profession (prostitute) do? Are their any other alternatives? Can an average person learn to be good at sex without that many levels? Can monseters be modifered (such as the succubus and others) to have this new skill and still keep some sembelance of balance?
All that being said, I have the DC chart for the status conditions I presented and one more that I think could be a good option that I forgot to tag on in my first post.
the other optional condition:
Ecstasy
Not all orgasms are equal and these are the best of them. A character in Ecstasy orgasms in a powerful climax or several times repeatedly. They are considered Helpless whilst the condition lasts (usually one round). Two points of subdual damage are taken for each Hit Dice the character possesses. A Concentration check (DC 50) allows action as if Aroused. Spellcasting is only an option with a Concentration check (DC 50 + spell level). They must also succeed a Will save (DC 22) or take 1 point of temporary Wisdom damage. After this period, male characters lose all arousal, and further checks against them for (10-Con mod) minutes suffer a -15 penalty. Female characters reside to Aroused.
The DC Chart:
Hr: Horny, Ar: Aroused, Pk: Peaked, Cx: Climaxed, Scores are for Male/Female
Current Condition: -- Ar Pk Cx
Target Condition: Ar 13/16 7/9 4/5 --
Pk 26/32 14/18 8/10 --
Cx 52/64 28/36 15/20 20/25
Horny: If your target (partner) is Horny, all DC's are reduced by 1.
These states can only be induced via a tantric art (sex trick).
Lustful: The DC is equal to the Peak DC plus 10.
Esctasy: The DC is equal to the Climax DC plus 5. They act on the chart as though Climaxed.
Over-Stimulated: The DC is equal to the Climax DC plus 10. They act on the chart as though Peaked.
Sexually-Delerious: The DC is equal to the Climax DC plus 20. They act on the chart as though Peaked.
On Addition to the Sexually Delerious Condition:
Sexually Delirious
A character that reaches this stage is considered Helpless. IF THE CHARACTER HAS A TEMPORARY WISDOM SCORE OF 3 OR HIGHER, IT IS INSTANTLY REDUCED TO 2 WHILE THIS CONDITION PERSISTS. The only action he or she is capable of is mindless sexual congress. The character will seek out the nearest partner (only radically differing sexual alignment issues will be rejected). If no partner is available, the character masturbates. Resisting this urge requires a Will save (DC 30) every round. Even if successful, all other actions require a Concentration check (DC 40). Spell casting is only an option with a Concentration check (DC 50 + spell level). A character in this state can be Climaxed, but always returns to this state. All subdual damage taken from orgasm is halved (round down, minimum 1 point) while Sexually Delirious. He or she is also suggestible as per the Hypnotize spell and loses all Will save bonuses until he or she gets 8 hours of complete rest. Sexually Delirious characters remain so until their Wisdom score rises to 3 (in which case they reside to Over-Stimulated), or they fall unconscious.
And just posting with some extrenious stuff:
From Shale's and the DbS Rules:
"Size Matters:"
Women can receive an object that is their own category without difficulty. (anything smaller is of course alright... It might not be pleasurable though) Larger that one category however will bring pain and eventually damage. Women also use the chart presented in the UCK, although theirs is a measure of basic flexibility and size. The scale is not relative to Orafice Stuffing. If a medium-sized woman can handle an object of large-size (via the Sex Trick) and she recieves a huge object, she is two steps surpassing her self, not one. At the DM's option a lesser-orafice recieving a greater-orafice of the same size can be considered a one category difference.
Three or more sizes smaller: Fruitless. No appreciable sensation of any kind.
Two sizes smaller: Pathetic. Both Prowess checks incur a -8 size penalty. Where penetration is just one element of intercourse (eg. open-ended Prowess check), this penalty is reduced to -4.
One size smaller: Disappointing. Both Prowess checks incur a -4 size penalty. Where penetration is just one element of intercourse (eg. open-ended Prowess check), this penalty is reduced to -2.
Half a size smaller: Weak. Both Prowess checks incur a -2 size penalty. Where penetration is just one element of intercourse (eg. open-ended Prowess check), this penalty is reduced to -1.
Same size: No special rules.
1 steps larger: Causes 1 point of subdual damage and pain each round of sex. In addition, the female recives a +5 bonus to her arousal checks due to the pain.
2 steps larger: Causes 1 point of lethal damage and pain each round of sex. In addition, the female recives a +10 bonus to her arousal checks due to the pain. The owner of the organ also sustains 1 point of subdual damage a round due to the tightness and constiction.
3 steps larger: Causes 5 points of lethal damage and pain each round. In addition the reciever must make a Fortitude save each round with a cumulative -1 penalty per round or fall unconsious from the pain (this lasts until the abuse stops and 2d6 minutes thereafter).
4 steps larger: Causes 10 points of lethal damage and pain each round. In addition the reciever must make a Fortitude save each round with a cumulative -2 penalty per round or die from the internal injurgies. Females do not make arousal checks while being violated in this fashion. (If the DM is particularly sadistic, the checks should be at a minimum of +15). The owner of the organ also sustains 5 points of subdual damage a round due to the tightness and constiction.
5 steps larger or more: Kills the reciever instantly. Some DMs might allow the character a Fortitude save with a cumilative penalty to prevent the object from fully entering their orafice."
My only other comment at this point... Will the Status conditions match up with the spells? I'd be more than willing to lend a hand in helping them match up. Where is the current list of spells, by the way? If you want a hand of course.