Literally a piece of paper, from the doctor or clinic, that shows you're "clean" and free of sexually transmitted diseases. Clean papers are usually presented in order to have sex without condoms, and not worry about catching anything.
I'd really like to Fuck you bareback, because it would feel amazing, but I'm worried about diseases. How about we both go get our clean papers so we can ditch the condoms?
by IrisGreene April 18, 2017