Why doesn't anything come out when I m*sturbate?

I am 13, I do master*bate, I get the big O but no cu*m or anything whatsoeva, is this normal for my age, I would think it is but I had to make sure, this has been a bit of a worrie for me but yeah.

At your age your body is still developing. Some develop faster than others, sounds normal considering the age factor. Relax and try to stop stressing, it'll happen in time.

You just haven't developed. Most of the semen comes from the seminal vesicles and prostate so like pacman said just give it time . It will happen don't stress it I mean if your having the big O lol then your all good if nothing comes out who cares right? If by the time your lets say 16 to 18 & nothing is still coming out then I would suggest going to see a physician . Hope this helps =)