@Yunowho ah a few chapters back during the hunt when wei ying was resting atop a tree lan zhan pinned him against the tree and kissed him. Mind that wei ying was blindfolded so he assumed it just was a girl,he didn't remove his blindfold cause he thought the girl would be embarassed if he did so. After that wei ying went searching for the girl and met lan zhan,he asked lanzhan if he has ever kissed anyone wei ying assumed lan zhan never did and when asked the same question back wei ying said he had ton of experiences.