Hi. The post is quite old, but maybe it will still be useful to someone. I am a male submissive and enjoy playing with cigarettes from time to time. So I will tell you what it looked like on my example.
To begin with, I have never suffered any serious injuries, but that doesn't mean no one will ever be hurt. There is always a slight risk, depending on the person's skin and body.
Things I did or someone did to me / how many times in my life it was done to me / damaged, traces etc:
-Extinguishing cigarettes on balls / about 50 /0 traces
- Putting out cigarettes on the skin of the penis (foreskin) / about 100 / several times I had a slight burn on the skin or a small bladder, but after a few days, 0 traces
-Extinguishing cigarettes on the penis glans / about 10/1 slight burn, but after 2 days 0 traces
- Putting a lit cigarette in the ass / about 20 / 0 traces
-Placing a lit cigarette on the balls and waiting for it to go out / about 40 / a few light burns on the skin, after a few days 0 traces
-Location of a lit cigarette on the skin of the penis (foreskin) / about 60 / about 10 light burns, quickly disappeared and about 10 more severe burns, which left me with 2 small scars
These 2 little white spots on my penis are the only scars I got from all those hundreds of cigarettes. Of course, it's better not to have scars, because they only disfigure. But in my opinion, as many cigarettes as in my life were extinguished on me, these 2 scars are nothing.
It is also important that these scars were not caused by the quick extinguishing of a cigarette on my penis, but these cigarettes were lying on it all the time burning and burning my penis more and more for a few minutes. It was very, very painful minutes (towards the end it hurt so much that I thought they had burned holes in the skin right through) so no wonder there were scars, even strange that only 2.
If anyone likes to play with cigarettes, I recommend it anyway. But be careful, a moment of inattention can end up worse than a scar.