I have mentioned my cup a few times to my sister, and she says she's vaguely interested. My husband says he thinks she is just being polite and I am weird to discuss this kind of thing in public. But since we are in Australia, it is going to be quite expensive, so I thought about getting her one for her birthday (next month). The thing is, I have no idea if she is large, small or funny shaped or anything else, so I'm not quite sure how to choose. (She is 31, no children, sexually active.) Obviously with most of them there is no return or exchange, so I don't want to waste my money.
Any thoughts/suggestions/things to consider?