Prostate Play after TURP Surgery

I have been chatting and camming online with a friend for a long time. During some of our discussions he has picked up that I enjoy anal stimulation and it seems to increase my erection and climax. He has told me that he's interested in trying it but has never had any anal play and when I asked if he's ever had an anal exam, he revealed he's only had a couple of unpleasant exams before he had TURP surgery (not sure of underlying cause). He produces lots of pre-cum but complains that he only ever has retrograde ejaculations now.

We have discussed trying to meet in person, and he is keen on experiencing anal stimulation / prostate play. This raises some questions for me; which I wonder if anyone can provide suggestions on from personal experience (knowing we don't give medical advice here):

- Is it safe to perform prostate play as he's had prostate surgery?

- What will it feel like for him as the receiver and me as the giver - will I still be able to "feel" his prostate?

- Are we likely to get any fluids expressed from a prostate massage?

I dont know the answer to these questions, but I am curious as well. I know many medical professionals are probably members here, so hopefully we all find the answer soon.