Vampire’s Forbidden Omega by Hawke Oakley

An impossible crush.
Romance was always off the table for Maxwell—especially not with any vampires.
After being abducted by a vampire matriarch to be the Tenebrae coven’s private doctor, Maxwell settles into a new normal where vampires exist, and aren’t the evil monsters he always imagined. He even forges a special connection with the youngest vampire of the family, an alpha named Theo. The unusual pair have a deep friendship that lasts even after Maxwell is released to live freely among humans.
Despite returning to his doctor’s duties and living a normal life again, Maxwell can’t stop thinking about his friend in not-so-innocent ways. He’s never been interested in love before. What’s so different about Theo?
Banned from being in love.
After Theo saves Maxwell from a dangerous encounter by unleashing his vampire strength, the rest of the Tenebrae family decides Theo isn’t stable enough to be around humans—including Maxwell. The idea of a relationship between the two friends is effectively banned.
But when the two are forced into close proximity, ignoring their feelings becomes impossible. Can Maxwell and Theo find true love in each other when the whole world wants to keep them apart?