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.
Ass is just awesome, who can refuse to put such a lady in the anus. Especially since she is so excited about it. And I don't need those silicone tits, what's the use of them. Licking the anus isn't my thing either. A man should pull a woman into every orifice of her body, it's normal and natural.