Now you're reaching so far, you're making Shaun T's 'Insanity Workout' look like Pilates for the over 60s.
And Shaun T is gay.
Nope, not seeing any sex scenes in his DVDs.
...oh, and cancer isn't a communicable disease, unlike STDs; cancer is mutation of the cells. And I should know, seeing as around 15 years ago I had to have a (admittely benign) tumour surgically removed from my rectal wall.
I'm a straight man, and have never been the recipient of anal sexual penetration - either by organ or plastic substitute - before, during or after said surgical procedure.
The only issue I encountered - when I had said tumour - was there were traces of blood in my stools, which was something of an inconvenience; I certainly didn't experience any kind of issues, re. my regularity at the time.
I think you have some explaining to do, turdryder. Also to my physician; although he wasn't my doctor at the time, he was the anaesthetist at my operation to have said tumour removed. And whilst it was his first time as an anaesthetist then, the chief surgeon said it was textbook, and he couldn't have asked for a better person to make my operation as painless as possible*.
*- But then, he did study a lot of the papers written by my previous physician - himself an anaesthetist (and had his own private practice at hospitals & especially dental surgeries). Who nowadays, whilst retired as a doctor, is a senior advisor in the field of anaesthesiology to the UK's General Medical Council, with many papers printed in the august medical publications "The Lancet" and the "British Medical Journal" to his name.