I'm staying with my sis for the Easter Holiday for 2 days, so she's given me her room moved to her flatmate's room right next to hers. The walls are really thin. We went out last night, her flatmate met a guy and he came back home with her. The guy is a dickhead. He says that he saw my penis while we were at the loo and just loudly tells my sis and her flatmate that it's really small. It really embarrassed me. My sis didn't say anything. She couldn't even look at me. I got really angry and went to my room. After like an hour, I hear the guy and my sis's flatmate get in their room. Except I heard my sis voice too. I thought they were just going to hang out. But, soon enough I was able to hear sloppy blowjob noises and the guy asking them "You like this big dick" or something like that. After a while I thought I'd record. So here it is.