The Alien Hybrid by Phoebe Harlowe

Lesley and Donovan shared the vanilla-ist of all vanilla loves. Then aliens invaded Earth and abducted Donovan, and Lesley was rescued by her best friend and a crew of space misfits.
Lesley didn’t think she’d ever discover what happened to Donovan, but during a shopping trip to a sketchy space station, she sees him.
At least she thinks the massive, ripped, feral creature is Donovan. He confirms it with one look, a look of pure love and awareness… and then he almost blows up the station at the command of his master.
Donovan—now an alien/human hybrid—is completely controlled by his master, at least until Lesley is near. Their love threatens to break his master’s hold, but the danger to Lesley is real and terrifying, and so is the decision she must make.
Because Donovan isn’t vanilla anymore—he’s an alien hybrid who needs to claim her, command her, and pleasure her in ways she’s never imagined.
But his master has other plans for Lesley, and he has all the power.
Or does he?
Does one woman in love have the power to change the fates of her man and the others who’ve been turned into hybrids?
Is her love—their love—strong enough?