I'm only 13...

Believe me, porn pics do not give you real information on that what sex really looks like in the real life. Most of the porn pics are taken from persons who are posing in absolute abnormal postures. These pics are frightening for kids, and disgusting or foolish for experienced persons. The main reason of the big difference is that porn pics are made for SHOWING certain details of the male/female body in action, but people make sex mainly to FEEL enjoyable sensations. Many times with closed eyes. So do not worry about this issue. Sex in the real life is nice and beautiful , even as a scenery. If by chance, you will be in a situtaion when your friends make sex just in front of you, you will find it attractive and nice. If possible ask an adult around you what is the reality of a given porn pic that you found, and I am sure they willanswer that most of them are interesting for almost pathalogical persons. My oppinion is that about 1 or 2 porn pics from 100 make real sense of the real sex that normal persons do, and these pics are usually more or less aesthetic. But that is also sure, by porn you can learn few details of the anatomy of the male/felmale body.