Lux was vaguely aware that Troy had asked her something, but all she could do in response was hum and she didn't really think words were that important right now. While part of her was aware that this was the exact opposite of what they had agreed and it would probably end up badly, mostly Lux was just loving every second of this and her hold on herself was letting go a little bit. When he kissed her again she met his hunger perfectly, her chest heaving when he gripped her more tightly against him. A hand over the back of his head, she entwined her fingers in his hair and curled them while at the same time she pressed her thighs against him.
If he thought she was ever going to tell him to stop then he definitely didn't know her that well in this regard. And then there was the little bit of her who wanted to see just how far Troy would go on his own.