Many women do more than that when they're alone with themselves. But the contrived rules do not allow them to relax with a partner. It is not without reason they say, that a smart woman has it in her head, a fool has it in her mouth. I even know men who categorically reject such liberties.
What could be sweeter than the slit of the best friend's mom. The guy licks her to a shine with his tongue. And then, climbing on top of her, shows her who's boss in the house. Simple, but very sensual video.