Looking into Eva's eyes, which held nothing but him, Christian suddenly found himself lost in his thoughts, even though at first they seemed unrelated. He had told himself before that he shouldn't be swept away by circumstances anymore, especially after confiding in his sister. But now, in this moment, he felt like he was going against that decision.
At this moment, he found himself unconsciously comparing Eva's breasts to his sister's while kissing her, after all. Even, while, his other hand, resting on her stomach, inched lower, preparing for what might come next.
Of course, it wasn't that he didn't want to advance their relationship, but he felt that the current situation wasn't right for it. He believed he should be fully focused on her, with no distractions, nothing like what he was experiencing now. As after recalling his sister and the events from that morning, those memories seemed to replay over and over in his mind.