Her Alien Captain by Clarissa Lake

Kidnapped by aliens who sell her into sex slavery to a hideously ugly alien of another species, Jenna Harper is sure her life is over.

Enter freighter Captain Farzeke Be’Kal maneuvered by Alliance to rescue Jenna and five other women stolen from Earth. After the Alliance agent he transports to Se’Nar buys all the women from the auction, Captain Be’Kal and Jenna Harper are chagrined to learn they are biological fated mates for life. Neither one feels ready to make that life time commitment, but it’s already too late.

Once Jenna is exposed to his pheomones she must have sex with the feline humanoid or risk death in a matter of days. Is she now doomed to sexual slavery of another kind?