. . . . The Wikipedia entry for Cunnilingus states:
"Cunnilingus is an oral sex act performed by a person on the vulva or vagina of another person.  The clitoris is the most sexually sensitive part of the human female genitalia, And its stimulation may result in a woman becoming sexually aroused or achieving orgasm. " the rest of this Wikipedia article is online
Whenever a woman spreads her legs After that whenever a woman shakes her booty and her butt that means a woman wants to be weaker and give you power a woman wants to be a slave that is why so many women spread their legs to be slaves to their men
When a woman gets on her knees to suck your dick, She is giving you power. She is submitting herself to your authority as the man in the relationship. When men give oral, It is called eating pussy. There is nothing about that expression that implies subservience or submissiveness. No one submits to their food when eating it. Neither does a man submit to a woman when eating pussy. Just like food, Her body is for him to savor and enjoy.
"Suck my dick is an expression people use to convey power and authority. Nobody says "Eat my pussy" to sound tough and in control and these sexual acts are the inspiration between the verbal power plays.
People try to say the woman is in control when sucking her man because it is a sensitive organ she could easily bite but what will that achieve in the long run? You will be single and if you do that as a form of attack he would still overpower you anyway. Women don't desire to do that, Anyway. They want to serve their men in total obedience and getting on your knees to pleasure him symbolizes and expresses that desire.