I feel guilty for accidentally staring at people's private parts.

It sounds like it’s OCD up to its old tricks. OCD loves to attach the things that are important to us. It sounds like it’s important to you that friends and others feel comfortable. Therefore not surprising that OCD is attaching to this. It is the doubting disease. Don’t try to fight it just know it for what it is. Things like this do not define who you are and your values. be patient and kind with yourself.

I am sorry you are having a difficult time. Like @lisa leelou said, ocd will try and make a mountain out of a mole hill. Here is an article that may help. https://www.treatmyocd.com/what-is-ocd/common-fears/fear-of-staring-ocd

I have to add if a friend said she was concerned because her blouse was too low my eyes would go there too. I think that is pretty common. But as said above ocd will make you feel bad but recognize it’s tricks and that may help.

Hi there! General looking at people has no meaning unless we attach meaning to it, OCD is trying to tell you that because your eyes glanced at people that *must mean something* bad. There is a motive difference in looking at someone because they are there vs. looking at someone with lustful intentions. With OCD it is very hard to know our motives and OCD will tell us all our motives are completely bad, so we must sit with the “maybe they are, maybe they are not” and wait for the anxiety to go down, not trying to check, or avoid. This takes practices. I’m sorry for the pain you’re in over this. Actively not engaging with the thoughts and making the decision to sit with your fears instead of figuring then out is our way through OCD!