All books
Every book has its own Spank-O-Meter. It's exactly what it sounds like: spanking level, which implements turn up, and whether there's anal play.
Over Her Dentist's Knee ●●●○ Spanking level 3 
Disciplined By Her Neighbor ●●●● Spanking level 4 
Disciplined By Her Boss ●●●○ Spanking level 3 
The Strict Roommate ●●○○ Spanking level 2 
Hotel Inspection ●●●○ Spanking level 3 
The Naughty Hitchhiker ●●●● Spanking level 4 
Dating Forbidden ●●●○ Spanking level 3 
Steamy Christmas ●○○○ Spanking level 1 
Las Vegas Spanking ●●●○ Spanking level 3 
The Strict Notary ●●●○ Spanking level 3