I've read up a LOT on lucid dreams because I once had an LD where I was receiving oral.. ...from myself. It felt like a real blowjob, it was awesome. Then I woke up and wondered why the hell I couldn't do it anymore. Took me a minute to realise it was in a dream; that was disappointing. Never realised how realistic LD's could be, it's all to do with your brain being awake but your body asleep. You can feel pain, pleasure, everything you feel when you're awake. Never had one since then, and I've not put the effort into it. Have to record your dreams and do reality checks and get a regular sleeping pattern, and I can't be bothered with the effort. I'll get round to it at some point though.