You are Calyx Starr -- street-wise, witty, and willing to use sex to get what you want. You're also in love with a man who is the complete opposite of you, but that's part of the attraction -- you've always enjoyed a challenge.

Today, you face a bigger challenge than usual when you discover it's your lover's birthday. Lt. Black -- or Darkness, as you prefer to call him -- is the last person who'd tell you what he'd like for his birthday and none of your teammates care to help you, either. To make matters more complicated, Black is out on a mission with your rival, the dashing Lt. Sundhill. Your mission is two-fold: put together a birthday celebration that will please your difficult lover, and oh yes, find Black before Sundhill puts the moves on him.

Your task is a complicated one, but you're up for a good adventure. Using the metro system, you travel the city in search of the perfect gifts and toys -- and no one said they have to be G-rated! It sounds like fun, but it's also tricky: danger lurks in the subway; old friends try to sidetrack you; the temptations of sex and drugs lie in wait around every corner, and perplexing puzzles must be solved. If you don't advance quickly enough, you may find that Black has decided to spend his birthday unwrapping Lt. Sundhill's gifts instead of yours.

So put on your sluttiest outfit and practice that wink. Because tonight, only the best man goes home with Darkness. It better be you!