Many times I’m having a completely unrelated dream session, then suddenly I sense that I’m about to wake up, so I just quickly manifest sex to the awkward surprise and staring of the dream cast present at the scene. But this is a paradox because it makes the dream end even faster because everything is rushed and sloppy and the manifested faces aren’t even as detailed as the natural dream.
The weird thing is that I’m aware of my dream state yet the thought of “let’s finish the adventure instead of having sex” doesn’t enter my mind.
My guess is if you can tell you’re about to wake up, that means your imagination had a great idea for a premise, but didn’t know how to write a satisfying ending for it, and you noticed things were starting to unravel. You could try, as soon as you wake up, start workshopping what a compelling conclusion to the dream could have been. With some practice, your dreams might start to incorporate those ideas. Or just enjoy the sex, and don’t worry about your dreams needing to be complete works.