Z Y G G Y
Bluelighter
"Have you tried anal sex"?
A: "No"
B: "Yes"
A1: "Would you be up for it?"
B1: "What did you think of it?"
If no / didn't like it.. leave it at that.
If yes / liked it.. go for it.
I agree with this approach.
If she says no, tell her that you are really interested in it and would like her to think about it. If she ever decides that it might be a good idea then she needs to tell you about it. And that's it. The end of conversation.
No one wants to be continually bothered about something they don't want to do. After a while it starts having the opposite effect of the one you want and will guarantee that she never wants to have anal sex with you.
Maybe tell her that it doesn't always hurt women and if done right it can be pleasurable. If she says she is not interested then that's it. Nothing you can do other than rape her ass.
Maybe its too early in the relationship and later on she will be up for it.
It's better if she asks you herself.