Granted this book isn't a work of literary perfection, but it did provide for me what I was looking for. A little fun, a little romance, and 2 characters I adored from the start.
Alistair and Lauren just had this innocent chemistry that went way beyond innocence. There was plenty of sexual tension, and yes Lauren might have been a little flighty, I didn't consider her to be immature. Innocent is the word I chose to describe her, and a free spirit. A girl who is naive, but isn't afraid to speak whatever her pops into her mind.
The other 2 characters in this four-some Oliver and Barbara were the boring pair, and maybe that is why she left them underdeveloped, I just didn't feel the same connection to them as I felt to Alistair and Lauren. If the author was going for genuine romance between 4 people she fell seriously short, but if the focus was to be Alistair and Lauren, then the book was spot on.
I enjoyed this book immensely and the rating of 3 is because of the underdeveloped characters. Not based on the story.