Stretch marks??? Help me 😭

Ok I have a quick question. When I shave (which I don’t do often because I have blemishes and it makes me self conscious so I let the hair kinda cover it) I have started to notice little wrinkles on the top part of my outer lips.

So being curious I try to figure out what it is and pull my skin to get a better look and to me they look like stretch marks..

But I feel like that’s a weird place to have them and wanted to know if it’s normal. 🤔 Everything I look up seems to relate to pregnancy. I know that’s not the case cause sadly I haven’t even had sex.

Soo I just wanna know what could have caused it and why are they there. 😭

And possibly any tips for how to get rid of blemishes or help lighten them and prevent bumps on my bikini area. 🙇🏾‍♀️