Wakanreo Series by Carmen Webster Buxton

In ALIEN BONDS, two lives are changed in an instant. Industrial chemist Dina Bellaire travels all the way to the planet Wakanreo to advance her career. Her carefully planned life goes up in flames the second she meets Kuaron Du, a Wakanrean who makes his living singing ancient songs in a dead language. Both of them know they can’t go back to the way they were before they met. They just have to convince the rest of the universe that what happened to them is real.

Yulayan Bellaire has grown up knowing she's different. Her mother is human but her father is Wakanrean. No matter how Wakanrean she looks, no matter how much she tries to blend into Wakanrean society, her human half is still there. Still, Yulayan expects to mate as all Wakanreans mate, totally by chance, as soon as she comes near a man with compatible pheromones... moreYulayan Bellaire has grown up knowing she's different. Her mother is human but her father is Wakanrean. No matter how Wakanrean she looks, no matter how much she tries to blend into Wakanrean society, her human half is still there. Still, Yulayan expects to mate as all Wakanreans mate, totally by chance, as soon as she comes near a man with compatible pheromones. And then one day she meets Kamuhi Hailoaka, a physicist from Terra who finds her unique genetic combination appealing, and she discovers that her human half is more in control than she had thought possible. less