Books like The Mad Scientist's Daughter

"Cat, this is Finn. He's going to be your tutor."Finn looks and acts human, though he has no desire to be. He was programmed to assist his owners, and performs his duties to perfection. A billion-dollar construct, his primary task is now to tutor Cat. As she grows into a beautiful young woman, Finn is her guardian, her constant companion...and more. But when the government grants rights to the ever-increasing robot population, however, Finn struggles to find his place in the world, and in Cat's heart.