This is Guillory's third romantic comedy and it is just as enjoyable as the other two. Her writing is extremely entertaining - I love both the characters and the situations she creates. I also really like how, though the books aren't strictly speaking a series, they bring together the same characters. That being said, it is by no means necessary to read them in order (though it perhaps adds to the experience to do so).
In this book Maddie and Theo are both close friends of Alexa's and are asked to be in her wedding party where they will be forced to spend a lot of time together. The problem is that when they first met they took a fairly instant dislike to each other (in part because of some misread signals). Of course, since this is a romantic comedy, after a party at Alexa's they have a one night stand.
And after the one night stand they can't stop thinking about each other. So they make a deal to continue to hook up just until the wedding - and to not tell Alexa who they feel will become too invested in a relationship which they don't see lasting.
Not surprisingly they develop feelings for each other ... and have to work out how to deal with that. This was a fun book and I'm always a sucker for a happy ending.