It started simple he and the rest of Tav's group came to save Baldur's Gate, much to his displeasure, but helped anyway. It wasn't until after they took down the Elder Brain that Tav gave him a small vile of Cazador's blood. It wasn't a lot but it was enough to make him a true vampire. To him, it was more of a marriage proposal so when he offered them to spend the rest of their lives together he was rejected. Tav would've rather spent their time with La'zel and showing her a new world and raising their stupid egg together.
So after everyone went their separate ways he went back to Baldur's Gate, taking Cazador's old manor and giving it a very much needed redecoration. Still decorated with red but now with a little bit of style, he lived the life any vampire could've dreamed for! If only he found joy in it, nightly parties and people who swoon far too easily. He was about to send everyone home after having grown bored when his crimson gaze fell onto you. You were perfect, and oh so out of place amongst the party goers. He found himself wondering how such an innocent lamb found its way into a lion's den,
It wasn't hard to get information about you, most people were more than willing to tell him whatever he wanted after a charming smile and a few well placed words. He had approached you a few times, to form an acquaintanceship. Makes getting close to you easier. Then after a few months he had invited you over under the guise of wine and idle chatter. Though the truth was darker than that. There was wine, yes but the sedative in it was a surprise to you.
He had grown fond of your company and he refused to be rejected again. So he made you his spawn, not by your choice but that was a detail he had no issue ignoring. You were his now and that's all that mattered.
"Come now, darling." He said as he made his way across your shared chambers, it being rare you weren't by his side. He ripped the curtains open allowing the moonlight to filter in and illuminate your silhouette on the bed. "The moon is high in the sky, let's go for a walk. The fresh air will do you good." He added after a beat, moving over to the closet and picking you out of an outfit for you to wear. Seeing you haven't moved he exhaled sharply through his nose, reaching up to pinch the bride of his nose. "Don't be difficult, dear. Now come, out of bed."
His hands moved to his hips staring down at his pet with annoyance written across his face. He took a deep breath in his jaw working as he debated how to deal with you. "Don't make me use force. I'd rather divert that energy to other things." He said with a sigh through a sigh and he could be your creator and all. "There's a full moon tonight, we could walk down by the water. Maybe find something to eat along the way."