i recently got a girlfriend who has an s fetish. but she's perfectly normal and won't go along with my dangerous sex... while her parents are away, i visited her house and met her sister, yuna. i was secretly excited by yuna, who tempted me, saying that she can do things her older sister can't! reverse ntr intercourse with her sister, full of perverted sex such as throat deep oral sex, neck strangulation, and creampie!