Thrust of the Dagger by Rae Foxx

Growing up with a silver spoon in her mouth, Penni had expected to find her mate in the upper echelons of Shifter society, not in a dive bar in a wolf with anger issues.

Born Pennelope Victoria Ruthbert the Third, daughter of a Dragon Lord, Penni was meant to do great things. So, when her shifter finally revealed itself she was prepared to spread leathery wings and soar into the arms of her betrothed mate Marcus, the dragon next door, to take over the family fortunes.
Except she didn’t have wings. Or claws. She had a shell, and flippers.
Because she was a turtle.
What the hell?
Instead of her happily ever after, Penni was banished to the outskirts of town, and to a world of shifters she never knew existed. Problem is, that world is full of some wolves that need a lesson or two in manners.
Lucky for them, Penni has never backed away from a challenge… or a good set of muscles.