Here's an example of someone explaining why they came to the forum (be warned it's a little explicit, although no words are used that can't be used on broadcast radio/televions in the US)...
Me and my sister have had a relationship since we were young. It all started when my hormones got going. I don't need to explain how it happened but we agreed at an early age not to have intercourse. We do everything else with hands, mouths, toys or whatever and always make each other climax but we have never had intercourse in 30 years. We are not virgins, we have had intercourse with other people just not with each other. Now that does not mean we dont get tempted. Many times I have wanted to and she has kept to our agreement and there have been times when she wanted to but I was stronger and I said no.
Originally it was about pregnancy but that would not be so much of a problem today with modern contraception.
Am I unusual in have a sexual relationship with no intercourse?
This couple obviously has something special, as they've continued for decades. Why shouldn't they be free to be together in every way, with any form of affection they want, without prosecution, bullying, or discrimination?