Girls would be amazed to know that guys couldn’t possibly care less about stretch marks. Or the other way around. Your marks, scars, etc are the last thing the other person is worried about when they are getting naked with you.
Scars, lines and marks can come together to give character to a complete person. Love yourself and feel good in your own skin. Nothing’s sexier than that.
Please DO NOT get yourself bogged down about stretch marks. They are normal. Do not think about how other people will perceive them. They occur because your skin grows. They occur on any gender. They do not need to be thought of as lightning bolts to be pretty. They are stretch marks. They are beautiful. You are beautiful.