I would say the average volume of semen for a 14 year old guy is about 5 to 10 ml. By that age, you've reached puberty and you can already produce great amount of semen when you ejaculate. I used to talk of this with my friends, and we were 13 or 14 years old. All of them had at least 6 to 10 spurts of semen per ejaculation and even if that seems high, I once had 13 or 14 spurts of semen, but most of the time I shoot 9 or 10 spurts. So the average is around 8-10 spurts for a 14 years old guy :)
drink a lot of beer and take a few Viagra
If he retrieved while ejaculating at the same time, yes there will be semen on the bed.
Increase of velocity over a period of time is called acceleration.
About 10-20 minutes.
Increase
New semen is recreated all the time, so in a day or so after the last ejaculation the amount will be restored.
Over Time, Aye.
inflation
Yes.
In order to increase accumulated depreciation, you allow time to pass. It will depreciate more over time.
No here the semen will taste the same.Even after a long time.
Increase