The man's reproductive organs that porduce semen are in no way connected to the anus or digestive track. Whatever it is that is coming out the anus that's not feces has to be digestive juices. Or are you asking if it's natural to fart semen. Ok, so having semen in one's anus is not natural because that's not where it's supposed to be therefor farting semen is NOT natural.
Without being judgemental about you in the slightest I'd simply answer that the only way that you could fart semen out of your backside is if someone has deposited it up your backside. Your own semen won't get there unless you put it there.
Some people are naturally "genteel".
yes, of course
Consuming your own semen will do you no harm.
It is impossible to do. Females simply can and do not produce semen.
Men and woman fart about 14 times a day
yes
No, they don't.
Nothing. Nothing at all happens when the semen of two men is mixed, whether they are gay or straight.
He's fat and overwieght and he eats people, so yes, he should naturally.
No.
i got news for you, EVERYBODY farts! men just do it in front of anyone and dont care
no. most men continue to produce semen through out their life time, well into their seventies and eighties.