* In the original manga and anime: Amy (Sailor Mercury) doesn't have any explicitly romantic kisses with other characters. She focuses on her studies and her role as a Sailor Scout, and her romantic life is largely unexplored. There are some instances where she shows interest in boys, like the "Mercury" arc where she develops a crush on a classmate. But these are mostly platonic and don't lead to kissing.
* In the Crystal anime: There's a moment where Amy is seen blushing while watching Mamoru and Usagi share a kiss, but this is just a brief reaction and doesn't involve her directly.
* In fan interpretations: The "Kiss" is a popular trope in fan fiction and some fan art, but it's not canon in the official story.
So, to summarize: Amy has never been depicted kissing anyone in the official *Sailor Moon* manga or anime. However, it's a popular topic for fans to explore in their interpretations.