Sin's Pride — Mandy M. Roth

Annora knows a lot about her best friend, Singh--including the fact that he is a lion shapeshifter and has a notoriously wicked way with women. She secretly longs to experience that passion herself, but doesn't dare risk their friendship.

Then Sin's usual flirting becomes way more intimate. Suddenly, neither of them can resist their desire--even though according to pride rules, their union is forbidden....