I see too much judging on here towards the bottom. I have been bottoming for one guy and I clean before I see him and take a shower. One time, I cleaned very well, but still when I bottomed for him and it was dirty. The person did not judge me even though I felt extremely embarrassed and just wanted to hide. I went home and hid in the shower, an hour later I texted and apologized. He was sincere and took it as a laughing matter and continued seeing me. I don't think the person you hooked up did it on purpose. He might cleaned very well but still happened. After all it's anal sex and you are an adult and you know what comes out of everyone's ass so be ready and know what to expect.