Originally Posted by Yuri The Commie
It is fine, the movies are all greatly exaggerated. NEVER use movies as examples, unless they are educational. You are just fine, as you get older, the amount of cum will probably increase. No worries
Yes, this is correct! As I always say, the problem with porn for teens (esp. younger ones), is that without much experience, you might actually believe you're supposed to be the same way. Remember, porn is acting, the people in these movies are selected for some reason, they usually have something that sets them apart. And since their 'talent' is usually in some size, amount, etc. department, it's not necessarily what most 'Normal' people have!
At 13, you're still really young, so what you've described sounds fine. It will advance as you get older.