The story is very much a fantasy, with a cast of super-attractive, wealthy, popular just-barely-18-year-olds. And the framing plot is ridiculous: the protagonist is a girl cross-dressing as her twin brother and hoping that none of his friends, enemies, and exes on the ship will notice. Nonetheless, the sex scenes detail emotional states that are relatively rarely shown in media. I dont just mean the BDSM aspects here, either. Theres a storyline about a character who is relatively inexperienced and also doubts her own attractiveness, who gradually alters what she wants to consent to as she becomes more confident, and this played out quite plausibly.