Here is the way of doing a oral sex by her:-

Place your lips over your teeth and with increased pressure move your mouth down the whole penis. As you come back up, use your hand for extra stimulation. Instead of going up and down, turn your hand slightly going clockwise and counter clockwise.

How is this ?

A good hooker once said that a blowjob is really 90% handjob.

Nice one. I admit your humorous nature.