Normal....there is no such thing.
And all women are different. Some hit a point where they
can not orgasm anymore (tired...etc..) and others..well
A woman orgasms differently than a man. Once the've had the first, the following ones are sort of a continuation of the first...kind of like waves building. At least that's how mine explained it to me.
Its not always possible to take her to that ultimate point, but she always enjoy it, as most women do. Try to listen to her, and feel her body as she hits these points. You'll know when she's there...mine loves it when we climax together, and we are used to each other that we always do.
Life is an Illusion...Dreams are real.