so I think I found paper in my vagina...

So this is soo weird but I was masturbating and I felt something down there and I pulled it out. I'm not sure what it is! It kinda feels like paper but it is also very discharge-y. I felt around again (you know this time to make sure there wasn't more) but I couldn't feel anything. I'm super glad this didn't happen during sex. Has this happened to anyone before?