Because I came on a girls butthole, and then I decided I was gonna clean my jizz off her. Grabbed some tissues and after a few wipes we both became aware that it felt like I was literally just wiping her ass. It was kind of awkward for a moment. I shoulda let her clean herself off but that seemed kinda rude considering where I came. I had easier access to her butthole than her. Plus, I wanted to make sure it was clean, for fear of my jizzims leaking down to her cooter and impregnating her, something I wanted to avoid.