Has Jonghyun and Jessica from SNSD kissed?

There is no confirmed information or evidence that Jonghyun from SHINee and Jessica from SNSD have kissed. While they were both popular idols in the K-pop industry and sometimes interacted publicly, any rumors about them kissing are likely unfounded or based on fan speculation. Their relationships with other members of their respective groups and personal lives have always been the focus of media attention.