Yes, the younger it is the smaller it is and as there is not as much weight in it yet it wil point straight up with no problem.
yes An erection can be stronger in some people than others and also at different times depending on what is arousing them. It is not unusual for it to stand straight up at attention.
yeah, its normal. it just means that your penis stretches a lot when you have an erection
It is not normal.
yea completely normal
yes totally
If your penis is getting erect "out of nowhere" this is a sign that it is starting to grow larger.
Sterility means the person can not have childrenImpotency means the person is unable to have a satisfactory intercourse.Sterile person can have a normal erection and normal intercourse
yes its normal
Yes, it is completely normal.
yes the penis should point either forward or up. It depends on how strong the erection is. The more excited and stimulated you are the harder it will get. Not all erections point upwards so it is normal for you.
Yes
Nope, Your screwed.. (: Have fun without an erection.. :P