Blood of the Sirens by Raven Storm

Mermaids don’t exist, but Mermen do.

A horde of them have descended upon her small beach town in North Carolina looking for eligible female breeders. And they don’t want mates; only vessels to breed their young.
Unfortunately for her, Jesse’s been targeted as prime baby-making material. Too bad she doesn’t know that ahead of time when she finds a half-naked man caught in a fishing net during her evening kayaking ritual on the North Carolina inter-coastal waterway.
Jesse untangles more than she bargains for, including angry mer clans, warring factions, a vengeful sea witch, a choice made centuries ago, and more about herself than she ever bargained for.