Rationality and love have nothing to do with each other. Because love had never been logical and true love is always beyond rationality. Rational worlds are too fragile since they are based on fragile emotions.
And when you find heaven on your lover's lips, that's when the rationality is truly lost. At least, that's what happened to Xiao Zhiren who completely lost his control and rationality as the kiss got deeper and deeper. If he could, he would never want to pull away but the fact that he had that burning desire to taste every single inch of her body made him pull away. But only enough to drop kisses down her jawline to her neck.
Her hair fell over her shoulders seductively making her look more tantalizing and captivating. With such beauty looming before his eyes, how could he hold himself back? He couldn't possibly stop his hands from wanting to touch her, feel her closer than she already was.