Although the Z-Files review nails the essence of the game, there's a few other aspects worth commenting upon.
Bloodline is probably the best use of the one-room game setup besides Marika the Offering. All of time telescopes to a single handful of fragmented seconds as you play a game with a guy you adore. It's not nearly that Romantic, of course.
The game is wildly inconsistent about the objectives of the main character. Is it to have a first kiss, or to get laid? Yes, 13-year olds totally like "going all the way" does happen, but that doesn't mean it's pleasant to participate in such a game. This is one of those situations where it'd be nice to know before playing what was in the game. (The game does not mention the main character's concerns about fitting in, although that could be a possible -- albeit poorly-worded -- conclusion that would also fight against her other comment.)
Outside of the profanity and the implications of sex, Bloodline captures the feeling of a slumber party well: the cliquishness, and the sudden emotional changes, particularly.
Finally, the pacing is lackluster, as the game really consists of only four turns at the end; everything else is simply waiting for your turn and additional cluing.