The ability to make your partner laugh with a well timed joke during sex.
He's pretty average in bed except for his sex of humor which makes it all worth it.
What I call my honey's humor when he cracks sex jokes or turns something ordinary into provocative...his sex of humor!
Chuck has a very good SEX of humor; he loves to turn ordinary situations into provocative ones.
Otherwise, If there's no underlying sexual content to the situation, it's just his ordinary SENSE of humor coming out.