As for kissing, Qin Xiaobao has no experience at all. She doesn't know how to kiss, and only relies on her passion and her persistence in fighting against Zhan Nianbei to forcefully kiss him.
Reason tells Zhan Nianbei to push her away, but emotion tells Zhan Nianbei to accept her. Reason and emotion pull Zhan Nianbei hard, making him swing between them.
But within a second or two of this process, Zhan Nianbei's emotions overcame his reason. He passively attacked Qin Xiaobao's head, kissed her hard, and the kiss turned the world upside down.