Hmmm by the mainsteam D20 players we are already perverts for even thinking of gathering together such ideas and rules.
We each have our own POV(Point of View) because of that each of has different needs on the rules being gathered together.
As for a small number of perverts it would amaze you as to how many copies of the Rules of Carnal Knowledge in all versions that have been downloaded, since the days of TSR rule.
That because the old rules set was a damn funny read, and fun to snicker at!
My POV on what the GUCK should become is more then just a set of rules for having sex. There are some major areas that are skimed over in most books, seduction, courtship, and reproduction. I feel it is 120% within the flavor of the GUCK to handle these issues to some degree.
* Psyckosama’s rules on pregnancy: I have reservations as to having a monthly system for working things out, and a few things don’t quite add up (eg common human in their Prime has over a one in six chance of getting pregnant after having sex once in a month. In real-life statistics, you’re looking at a third of this. Furthermore, it gives flat bonuses for ‘magic’, whereas 3e recommends no ‘passive bonuses’ – fertility magic should be as listed in the spell description. However, I really, really like the recent suggestion on critical ranges for multiple children – very much in flavour.
The reason I posted my system is because it is simple.
The problems you noted, they can be fixed. The current modifiers are semi-temporary. It needs polish. For example the "fertility magic" entry I gave is really just a momentary place holder. The discriptors I gave could easly be removed and incorporated into a standard spell.
Personally I just don't like the idea of rolling everytime they have sex. It slows down the *ahem* action and doesn't account for the fact that it can logically be guessed that players that do it useing the GUCK rules (like a married couple) would also do it "off screen" like when they are inbetween addventures, when the DM glazes over the long voyage to where ever, or other times.
Before anyone mentions that you should not consider the PCs sexuially active unless it's RPed out, I just want to mention that atleast I feel that the periods of time that are covered by the adventures are exceptional moments in the characters life, not the norm. I'll give an example of my opinion.
Bill the Fighter might spend lots of time trudging through god-forsaken pits for fame, forture, and to impressed his lover, Linda the Mage, but not all that time. They probelly spend more time traveling to the dungeon or relaxing in their keep/country villa/ townhouse/ect then they actually do during the crawl. And while they may enjoy the ocasional bout of kinky dungeon luvin' chances are most of their intimate activity will be during those long road trips or at home.
I know the above is a simplification but I think you can get the basic idea.
PREGNANCY
Pregnancy is broken down into nine stages. Amongst the common humanoids, each of these stages represents a month of pregnancy. At the beginning of each stage, the mother must test once each against Weakness, Awkwardness and Exhaustion. Failure represents the loss of a point of Strength, Dexterity or Constitution, respectively – this loss cannot be removed until after the pregnancy, when it recovers at the usual rate. The DC for these checks, and for spotting that the childbearer is pregnant, are given in the table below:
Stage/Check DC/Spot DC
1/10/75
2/12/50
3/14/35
4/16/25
5/18/20
6/20/15
7/22/10
8/24/5
9/26/0
Should the mother roll a natural 1 on her Weakness, Awkwardness or Exhaustion checks during the first stage, the embryo will not implant and pregnancy will be negated. Thereafter, it will only be when two Weakness, Awkwardness or Exhaustion checks have rolled 1’s in the same stage that the child will die.
There are some very rough rules to mull over. Get back to me with your thoughts and feelings – this is merely the product of an idly spent hour.
Oh, and regarding SinBadBleu’s last comment, I feel it is a hopeless, daunting and ungratifying task to try to cater to everyone’s tastes – many would disagree with the existence of the guide altogether.
Hmmm... It has potential but needs work. I agree with Sorn on most of his points and would like to add the idea that which stat is reduced is random and only one is reduced per cycle. Pregnant woman should also be encumbered as the weight of the baby should count toward their carry weight.
his armor check penelty on the otherhand is too great IMHO. I think it should be repersented by the decrease in dex, a penalty to worn (nonmagical) armor, and maybe a modifier that it is easier to critical against a pregnant woman.