Crystal Mellon is one of the pre-made townies who resides in Four Corners, one of the neighborhoods shipped with The Sims Life Stories. She can be made playable by befriending and asking her to move in, or by marrying her. Crystal is employed in the Slacker career as a Gas Station Attendant at the start of the game.
She has the same facial structure as Christy Stratton from Pleasantview. As far as personality, Crystal is quite playful and somewhat nice. But she is somewhat sloppy, shy, and lazy. When it comes to her skills, Crystal is well on her way towards maximizing the creativity skill, but she doesn't have a particularly high level in any of her other skills.
She is mostly interested in Food and Work. Despite being a Family Sim, Crystal has the lifetime want to reach the top of the Athletic career. This want makes her compatible, at least in theory, with a Fortune or Popularity Sim, though she would have better chemistry with a Knowledge Sim.