This thick blonde slut, Mary Konopelka sucks my cock like a professional

My sister's thick blonde friend, Mary Konopelka came to visit her but she was not at home. I convinced her into waiting for my sister in the sitting room. While she was waiting for my sister, I approached her and teased her about how I heard she is terrible at sucking dick. She got angry and proved me wrong by giving me the best blowjob ever.