Her big sister’s boyfriend promised to fuck her ass, but only if she could get both of her hands up big sis’s asshole. It took a lot of oil, plenty of elbow grease, and many moans and protests from her sister, but she’d finally managed to get both hands up her asshole. She knew that after she’d fist-fucked her big sister unconscious she’d finally get her boyfriend’s cock, pounding up her own ass until she passed out as well. She wished she could do this every night.