Infala: Claimed By Rivals by Kira Quinn

Stranded a bazillion light years from home was one thing. Having the two dominant alien captors each claiming you for themselves was a whole kind of other issue entirely.
Olivia had narrowly escaped Raxxian captivity, escaping their deadly clutches by a fluke of fate. She thought she was free, safe on a strange new alien world… until she found herself snatched up and whisked away by a whole different alien race.
This was a whole different sort of problem, though, and not entirely unpleasant. As a new and unbonded female in the midst of a culture with precious few, the two most eligible, powerful, and imposing of all the Maldonian race had just become unexpected rivals in their quest for her affections. And as they vied for dominance, the heat of their tempers would not be the only thing that would be flaring hotter than the alien sun.