The panty pic showed a little more than expected

Alex sat and read hundreds of comments like this and wondered what they were talking about, until he opened the picture again and dropped his phone in shock. In the heat of the moment, Alex didn't realize that the picture showed not only his slutty sister's wet panties, but her pussy too. He panicked and paced around his room, wondering what he was going to do, knowing fully well that he couldn't delete anything posted on that forum