I heard my sister having a hissy fit in the living room while I was just about to cum. I got pretty fucking annoyed and went to find out why she was being bitchy. I walked in the room to find her completely naked and fucking her pussy HARD with her fingers, with an angry look on her face. I still don’t even know what she was watching, but I turned the TV off and felt her body spasm and she came as I slid my rock hard cock down her horny mouth.