In Purely Paranormal Pleasures the sequence of the first three books should be read in order. The Lion Witch is the first book. The first three in this series are PNR alien shifters.

Pride's Legacy is the next in the series and should be read after The Lion Witch.

Absolute Pride is the last book (so far) that has to be read in sequence for the series to make sense. The books that follow can be read out of sequence. 

Forget Me Not is a PNR vampire story with its own set of characters and can be read out of sequence.

Leader of the Pack has its own set of shifter characters and is a PNR shifter romance.

Santa's Little Helper also has its own set of shifter characters and can be read out of sequence.