Those who have gotten good at LDing often can have and do pretty much anything (in the dream world), but at what point do you stop yourself, or worry afterwards that what you did was creepy.
Example: When I was 17 I lived in a big house and my Dad's girlfriend had kids. The two older girls were 13 and 16. We often kissed and felt each other up when the parents were not watching. I never had sex with the younger one, just sexy playful stuff. The memories from those days seem innocent enough. I am now 40 years old.
I had a dream that me and others were outside the big house. I RCd and became lucid. It was a beutiful day and I felt great. The young girl hugs me and gives me a sweet little kiss. I am deeply emotionally joyed by that. I would love to re-live some of that summer.However, my mind kicks in "behave yourself, she is a child" I notice that in the dream I am in fact 17 so maybe it is not so bad. I consider that we could just hold hands and exchange little kisses. I seem to be trying to make it ok with my morals.
She brushes by me and gives one more sweet and perfect kiss. I realize that the idea of just holding hands is probably BS. If I see myself as 17? Hmmm, sounds fishy to me. My logical moral brain speaks up and says "no way around it, no excuse good enough, she is too young to risk the dream turning sexy. We are out of here!"
I turned away from the scene and wandered into a totally differant lucid scene.

So feel free to give examples of moral choices you have had. Or discuss the topic in general, or even comment on my dream. It just got me thinking, and I am still not sure how I feel on the topic. On the one hand it is my brain "What Happens in Brain, Stays in Brain", then there is the part of me that would be saddened that I should act certain ways even if no one is hurt and no one sees.