Contact improvisation is one of those things that looks weird and feels great. It's my latest discovery and it totally, totally rocks. In a group, it's a bit like an orgy with clothes on, and no kissing or contact with private parts – apart from indirectly. Individually, well, it's a bit like sex with the same differences. It feels awesome. You can get carried away. It looks incredibly beautiful when done well, bloody weird by amateurs.
The most fun class I did was for complete beginners. We heafty overweigh folks rolled around and collapsed on one another in fits of uncontrollable laughter. The facilitator kind of walked around in circles helplessly as we just took it and... rolled with it :)