I understand your problem as one that I have had in the past, so I just thought I would offer you something that I have learned myself.

About 8 years ago I was experiencing a very advanced level of lucidity and could easily attain clarity within my dream almost immediately. Well, no matter how hard I tried during the day to promise myself I would not waste every lucid dream having sex........I would immediately after becoming lucid, find the first woman that I saw and have my way with her...hehe. I couldnt resist. It was just too tempting and fun!

Anyway, I would wake up and regret the wasted opportunity every time, so I understand......

The advice that I would like to give you is simple, and something that I have learned through the years. I can now maintain a fair level of self control on a consistent basis. The nice thing is that you have a choice:

1. Accept and make it your intention during the day, that when you attain lucidity, you will eventually give in to your more overwhelming desires like flying, sex, deeper prayer, or psychic information, but to first enjoy the dream environment in a clear and controlled way. In other words, save the heavy stuff for last.

Or

2. Practice self control and mindfulness when having sex or other things that might bring you out of your self control in every day life. Sex & masturbation can be an experience that you can easily lose yourself through by means of emotion or imagination; or can be experienced with complete control and awareness. Very similar to the dream world. I think you might understand what I mean.

Hope thats not too intense man...but I took your question to be sincere. Good luck, and maybe some of what I have learned and experienced might help you.

Take care.