I know you meant this thread for something else, but I'll just quote this straight off the CKII wiki.
Quote:Kitchen Meeting
In this flavor, you make a choice that affects your chance of success.
Confess love: good on targets who are kind, honest, zealous, shy, trusting, age under 25
Lewd suggestion: good on targets who are hedonist, lustful, gregarious, deceitful. bad on women under 25 unless they are lustful.
Quote poetry: good on targets who are poets, scholars, mystics, high learning, high theology education
Sexy whisper: great, but only available to masters of seduction