Can someone please tell me a good book that would be funny,maybe with a bit of romance o adventure?

For past few months I was Leggere only sci-fi and now I really want to read something without magic,vampires,werewolves and stuff like that. I'm looking for a book that would make me laugh,feel happy and relaxed. Probably everyone knows tv mostra 'friends',right? So I would like to read something like it (bunch of Friends always hanging out together,getting themselves into all this crazy situations...). It would mean a lot to me if anyone would suggest something =]