One common theme could be friendship. Since Moaning Myrtle is a rather lonely character, a story might explore her forming an unlikely friendship with someone related to 'lemon' in a symbolic or literal way.
There could also be themes of discovery. Myrtle, being in the wizarding world, might discover some hidden magic or mystery associated with lemons. This could lead to an adventure where she has to learn more about this strange connection and how it affects her and the world around her.
Typical themes include Myrtle's longing for acceptance. As a rather annoying (to some) ghost, she desires to be liked or at least understood. Her relationship with the other ghosts is also a theme. Some fanfics show her trying to fit in with the ghostly community at Hogwarts. And of course, her connection to the main events in Harry Potter's time at Hogwarts. She was there during important times, and fanfics explore how she might have influenced or been affected by those events, even if not directly involved.
One common theme could be friendship. Despite the odd pairing, they could form an unusual friendship. Maybe Myrtle helps Harry in some way that others can't, like providing insights into Hogwarts' secrets. Another theme might be growth. Harry could help Myrtle move past her sad state and grow as a character.
Well, it might be a bit difficult to find exactly that. However, you could join some Harry Potter - themed fanfic groups on social media platforms. There, you can ask other fans if they know any 'Moaning Myrtle Lemon Fanfic'. They might be able to point you in the right direction.
I'm not sure specifically as there could be many different interpretations in a fanfic. It might involve a rather dark and perhaps unexpected scenario where Harry meets his end while moaning and Myrtle is somehow involved, perhaps her presence being related to the place of his death or having some kind of interaction during that moment.
Common themes related to Moaning Myrtle in fanfics often involve her as a source of information. Because she has been in Hogwarts for a long time as a ghost, she could potentially know a great deal about the school's history and secrets. So, fanfics may use her to reveal hidden lore. Her emotional state is also a theme. She's often depicted as a rather melancholic and somewhat annoying (in a sympathetic way) character. Fanfics might try to delve deeper into why she is the way she is, perhaps by exploring her family life before Hogwarts or the events that led to her death in more detail. Also, her relationship with the other female ghosts or the female students in general could be a theme, as it can add a new dimension to her character.
Moaning Myrtle's story is that she was killed by a basilisk while using the bathroom. She became a ghost and is often seen weeping and causing mischief. Her presence adds a spooky element to the Hogwarts setting.
I'm not sure if there is a specific fanfic solely dedicated to Moaning Myrtle's legs in the Harry Potter fandom. Fanfic topics can be extremely diverse, but this seems like a rather unusual and specific focus. It's possible that such a fanfic exists in the vast expanse of the fan - created content, but it may not be a common or widely known one.
I'm not sure if there is a specific 'good' one. Fanfiction quality can vary greatly. You could try searching on major fanfiction platforms like FanFiction.net or Archive of Our Own, but be aware that lemon (suggestive or sexual content) may not be allowed on all parts of those sites, depending on their rules.
If Harry were to become a ghost like Moaning Myrtle in fanfic, it would be a really strange turn of events. He'd probably have a whole new perspective on life at Hogwarts. Since he was so involved in the living world before, as a ghost he might try to influence the events still going on. For example, he could try to help his friends solve mysteries or protect them from danger, but in a very ghost - like way that might be spooky for them at first.
Searching for this 'harry dies moaning myrtle fanfic' can be a bit of a hunt. Start with the big fanfic repositories. If it's not there, look into Harry Potter fan groups on social media platforms. Sometimes fans share their own or other interesting fanfics within those groups. Another option is to check out forums dedicated to Harry Potter fanfiction. But remember, the legality and quality of fanfics can vary, so make sure you're following the rules of the platforms and not engaging with any inappropriate content.