Seer by Raven Dark

It was meant to be a simple trip to take care of business. But by the time we get home, none of us will ever be the same.

Follow the continuing adventures of Setora and her men in SEER, Book four of the wildly popular Saving Setora series.
From Book 1:

It all began when the road warriors found me outside Hell’s Burning, lost and dehydrated. When the bikers took me into The Compound, I thought I was saved.

Especially when, as a Violet—a rare genetic anomaly prized above all—I’m taken in and raised by one of the wealthiest men in the world. Educated and groomed by the best teachers money could buy, I mistakenly thought he had a great future planned for me, one in which I’d be cared for and cherished.

I was wrong.

For centuries, women have been sold as slaves. In my 18th year, my benefactor reveals a truth that shatters my world. I’m to be put on display before the wealthiest of society at one of the biggest auctions this world has ever seen…as a slave.

But that night at the auction, something goes wrong. I am stolen by members of the infamous Dark Legion, a road warrior crew feared the world over. Torn from the only world I have ever known, now I have not one master, but four.

I shouldn’t want these dangerous, deadly men with their leather cuts and their growling bikes, but the deeper my captors draw me into their dark and twisted world, the more I crave what they do to me. They stole me from a powerful man who’ll stop at nothing to get me back. If I don’t find a way to escape soon, my new masters might just steal my heart.