She will let you know when she is ready...Be sure she did this for the right reasons and not just to please you..Us women do that sometimes lol...

does she bring up the subject, or do you prompt her? she talks about it in a positive manner? is she talking about it to arouse you perhaps?

trying to persuade someone to do something they dont particularly wish to do is certainly not the way forward. it could actually harm a stable relationship. it is my experience that where people care for each other the guy will arrange fun and excitement for his partners pleasure. of course he will also get a buzz from the experience, but the key is it has to be for your her. explain that you love to see her happy and aroused. and openly admit that it actually turns you on also. hope whatever ye decide is fulfilling.