hi frogthroat,
I do not know much about you or your life except the little bit you post here and there but I love dreams and can most times interpret them correctly.
If I remembered some of your issues correctly, I think this particular dream has orgasm - which most people associate with good times, living, passion, just delicious right...but for you it is maybe a painful experience because you are not happy to have this dream.
It is almost if your dream is telling you, you are having messy life, the same thing over and over....you are not letting go things unless they "explode" and create a mess. I feel your dreams are really great and trying to warn you because it is repetitious.
Like I said, without knowing your life, it is hard to know what your dream represent but your explanation is quite rich too. Even the words you chooose to describe are powerful.
Can you share this with your therapist and see what you may come up together? Do you write down your dreams and try to see a pattern?