Is discoloration okay? Should I feel insecure about it?

I am lightskin and I always felt just insecure about having sex .... I have before with the same person every time and he always talked about how pretty it was.... But I see otherwise....

I’m suppose to be having an “appointment “ Thursday (will be my 2nd person) & I can say i am quit unsure on how’ll he’ll react its as if I want to just put a thong on to cover up .... (inner thigh area is dark as well as the whole outside ) 🤦🏽‍♀️ I have a lot of stretch marks too around my body (I’m on the thicker side) & just don’t usually feel comfortable with my body enough ..... anyone else ever felt this way ?