The stretch mark thing irritates me too.I have them from puberty and pregnancy. I don't find them beautiful or anything like that. I simply accept them as scars. At the same time, my stretch marks faded pretty well after my first 2 pregnancies. So here's hoping they fade into obscurity once again.  When females who have not had a crazy growth spurt or been pregnant before are more marked up than me, something is seriously wrong with them.