Male Grapes and Female Wine

Men are like a fine grape:
-- They are best kept in the dark.
-- They can't handle too much heat.
-- They perform best when they are stepped on.

Women are like the wine that comes from the grape:
-- They are sweet, vigorous, and full-bodied when they are young.
-- They don't age well without preservatives.
-- They become sour and vinegary if they remain bottled up.