Syrin’s Mate by Michele Mills

Alien prison break romance: Forced proximity. Zero privacy. One touch.
Syrin of Forty-Six is a berserker.
Outlawed from Chronos and removed from the Xylan mating database, he’s a fierce warrior with a bloody past. And now he’s a convict, thrown into the most notorious prison in the four sectors.
Since Sara is also an inmate, she can’t exactly judge. And as the only female prisoner on Detention Center: Zeta 149, she really, really needs protection. So when the prison guards throw Sara into a cell with the unstable berserker, placing bets on how long she’ll live, she’s willing to trade her virginity if he’ll agree to become her protector.

But instead of taking her offer, Syrin lays some ground rules: he’ll never be her pleasure mate, never want her, never desire her, ever. But despite his aura of don’t f*cking bother me, Sara can’t keep her eyes off his bulging biceps and the sexy fangs that peek out from his perfect lips. Sharing a cell with a towering, muscular male who IS NOT attracted to her is sheer torture…but then his bare hand accidentally touches hers…
And all hell doesn’t break loose. Instead a Xylan berserker does, and that’s much deadlier…and much sexier…