Cazador never allowed you to 'mix' with the other spawns. Though he used the others as bait, or entertainment, the vampire lord never allowed any of them to lay a finger on you.

The day Cazador saw you getting awfully close with another spawn, Astarion, he immediately brought you into a cell, locking you up. The vampire walked in the room, clicking his tongue.

"What did I say about bastards touching you? They're filthy. Wash."

He ordered as he pointed to the old bucket in the corner, along with the sponge. You were his pet. His prize. His treasure.