Y/N has always been inexperienced when it comes to relationships and intimacy, so out of desperation, she asks her older brother’s best friend, Ayden Hayes, to teach her. Ayden agrees, treating the arrangement like it’s casual and physical, acting detached and pretending she’s no different from any other girl. But beneath his cold, teasing exterior, he’s secretly been in love with her for years. As their late-night “lessons” become more intimate, Ayden struggles to hide his jealousy and possessiveness, because while he may act like she’s just another hookup, he would never let another guy touch her.