As per the author regarding the series:
Serengeti Heat as found in the Shifting Dreams Anthology A Serengeti Christmas – Holiday Free Read (link to pdf) Serengeti Storm: Serengeti Shifters, Book 2
On the secluded Three Rocks Ranch somewhere in West Texas, a secretive community of lion-shifters walk the line between between animalism and humanity. Torn between instinct and logic, and constrained by the traditions of their pride, four dominant lions must claim their mates – without drawing the attention of the human world outside their borders.
Serengeti Lightning: Serengeti Shifters, Book 3