D&D: a new Feat that seemed appropriate here...

[WarDragon]

I present a logical extension of the rules presented in the Guide to Unlawful Carnal Knowledge.  Bear in mind, I am of the firm opinion that Epic Skill Focus and all its lesser brethren are badly underpowered.

LEGENDARY LOVER (Epic)
Prerequisites: Prowess 23 ranks, Endurance, any Carnal Art feat, Cha 17
Benefit: You gain a +10 bonus on Prowess checks, and on Bluff, Diplomacy, or Charisma checks made to seduce someone.  If you are male, you do not enter Recovery after orgasm, and may choose whether or not to remain Aroused.  Any negative effects from size difference between you and your lover are reduced by two size categories; positive effects are not affected (this stacks if both partners have this feat).  Finally, for purposes of interaction with Fatigue and Exhasution, rounds spent in Ecstasy are treated as if they were merely Climax.
Normal: A male character enters Recovery after an orgasm.  You can only withstand one round of Ecstasy before becoming Fatigued or Exhausted, and take 5d6 subdual damage for each Ecstatic round while Exhausted.