The Monster at the End of This Pregnancy by Edie Monte

Not all monsters are under the bed. The good ones are in it.

Human Punky Bell thinks he’s stopping by his parents’ house for his birth certificate. Instead, he’s tossed into a windowless van with a smexy stranger and hurtled to another dimension where the van becomes a dire weasel, and his abductor is a lizard/human hybrid.
Punky soon discovers he’s not so human after all. He’s a kobold omega.
Kobold alpha Lark has waited for his mate for a year, but he never expected to meet him on a changeling recovery mission. Now that he’s seen Punky, he can’t stop thinking about him. It’s too bad the strongest alpha wants Punky for himself.

With more than their mating future at stake, it’s up to Punky and Lark to challenge their mortal enemy and save their kind.