My step-sister, who is much older than me, is super cute and lolita-like, and is worried that she is lagging behind her female friends in class, so she comes to me for some naughty advice! She says, "I want you to teach me naughty things," so I try to teach her how to deep throat, and when I thrust my hard cock deep into her throat, she drools and suffers, but she gets excited and awakens her slutty masochistic side! She ends up asking me to do more naughty things and have sex with her, so I fill both her upper and lower mouths with sperm!