I loved the Twilight series, and tried the Sookie Stackhouse books to keep busy between Twilight movies. I love them! Sookie is a wonderful character, and the combination of fantasy, mystery, romance, and thriller elements make these books fun to read. I would say that if Twilight is PG-13, the Sookie books are definitely R, for mature elements (more sex, drugs, and violence than Twilight) and more graphic descriptions of those elements. That's not to say the books are all sex and vice, but they're definitely not for all Twilight fans. Certainly not for the younger audience. Just my opinion (30-something Twilight fan and mother of 3).

It's not gory at all. There's more sexual content though. The books will remind you a lot of twilight but they came out about 6 years earlier

The books are not too glory however there is a lot more adult scenes and content than Twilight. I loved the Twilight series but the Sookie Stackhouse books blew them out of the water. I think the books were the perfect length and once you read the first one it becomes a journey until you are finished. I really hope you read them everyone I know that has read them loved it!

The books are alot of fun. They have some graphic "gory" moments but they are well done and not too explicit since they are being told by Sookie and she's usually the one experiencing them. There is some graphic sex throughout the series (and the rape in book3) but not as much as the tv version.
If I were to give the books movie ratings they would be:

violence- PG13/R
gore- PG13
language- PG13
sex- R
adult themes- R