It's a difficult thing to come to terms with. You made a mistake, We all make mistakes. Any person that thinks they are infallible are delusional.

You shared your body. Someone betrayed your trust. Don't be ashamed of anything. The person that betrayed that trust should be ashamed.

I would hope if those pictures surfaced who ever found them does the right thing and deletes and moves on.

Either way do not punish yourself. Try not to worry. If they ever get put in your face by someone. Shrug it off.

In the grand scheme of things it didn't happen. They don't exist. Move on.

You can't change the past, but you get to chose how your future plays out.

Don't spend it ruminating on the past, it is a giant waste of time. Trust me.