Des:I went back to my girlfriends parents house to live with her for two nights and three days. What Im waiting for is a good sister with a plump and big ass! I love butts, and although I thought it was bad for her, I lost the allure of a big ass and continued to cum inside it with a runaway piston...! She was squeezed and turned into a slut, grabbing her buttocks and ejaculating the devils urine! ! My girlfriend’s sister who has sexual desire issues crushed me to death with her plump butt! !