I'm responding as a spouse. My husband's pc had infiltrated seminal vesicles. He was 49, so young. He was not eligible for nerve sparing surgery. I will tell you, and this will sound weird, but he did get slight, partial erections. We have no idea how, but it happened....in time. He tried viagra, viagra with Trimix, pump. Experiment. And don't rule out penile implant. My husband did't want to explore that. I do think as the years went by, and he survived 17 years (with 10 pretty active years), he was sorry he didn't explore that option. But I also want to say, love conquers. Experiment with new ways for intimacy...there are many. You can still have an orgasm. Appreciate that. Talk to your dr about someone that specializes in ED issues. It will be worth it. It's definitely a journey and different for everyone. I wish good health, patience and happiness. You will find it...you're alive and cancer free.