Join the club! I am 3 years post op and I ejeculate urine with such force that I can hit the ceiling on a good orgasm. I ejeculate urine with more force now without a prostate, then I ejeculated seman with my prostate.
I am one of the lucky ones who had absolutely no ED problems after surgery, and I can get a full rock solid erection without drugs. What is frustrating is that as soon as I start getting sexually aroused, I will start to feel my splinkter muscle relax and I will start to drip uncontrollably. Even if I empty my bladder before sex, I will still drip a little and still will ejeculate urine.
My uro told me that urine ejeculation is a side effect of prostate surgery that surgeons don't tell you about, and you just have to learn to live with it. He told me that urine is sterile and will not hurt your partner if you get some in her, but just try telling that to a woman!
I foun that the best thing I can do is if I know I am going to have sex, I will drink a lot of water and stay away from coffee or soda. The water dilutes the urine and eliminates the smell. Also, I find that if I have an orgasm while on my back and the woman on top, I ejeculate far less urine, and sometime none at all. I figure that in this position, the urine lays in the bottom of the bladder stays away from the ureatha, and thus doesn't get ejeculated during orgasm.