Great topic - I recently had a HT and on Day 5 after my procedure my wife "took care of things" for me with minimal exhilaration on my part, I didn't last very long, however my heart rate certainly increased, I don't think I even perspired - then of course AFTERWARDS I thought about checking to see if this was OK, and I was shocked to see doctors on the internet advising patients to abstain from sexual activity for 10-14 days and I thought "Here we go . . ."
So I checked with my doctor's right hand assistant and he thought this was a non-issue - I didn't have any grafts pop off, that was one concern I read about on-line, as for the blood rushing from your head to another part of your anatomy - they dismissed that -
I think sex is more problematical than masturbation because there is physical body movement and the risk of possibly dislocating grafts which haven't fully attached themselves, I was 5 days removed and lying virtually motionless on my back - so my grafts were never at risk
Does blood flow and an elevated heart rate create risks? Only a doctor could say for sure, but mine wasn't concerned
I had a minor sunburn after my first HT (not a sunburn just redness/pinkness) and it killed me that I even put myself in that position - if I had it to do over again I would not have engaged in even this scaled-back sexual act, it's unnecessary, most of us should be able to abstain for 2 weeks to protect the results of a very expensive elective medical procedure - but I crossed the Rubicon looks like you did too, I tend to worry about everything and I'm not worried about this you probably shouldn't be either - FK