I'm not sure specifically about a 'Harry Potter Play Boy' fanfic. But generally, in the vast world of Harry Potter fanfiction, there are a lot of different interpretations. It could be that an author has used this title in a very creative and innocent way, perhaps playing with the idea of a character having a flamboyant or carefree attitude like the stereotype of a 'play boy' but still within the context of the magical world and its values.
One possible plot could be that there's a wizard who is known for his charm and love for adventure, much like the idea of a 'play boy' in the Muggle world but in a very innocent way. He could be going around the wizarding world, trying out different magical spells and potions in a carefree manner, while also making friends along the way. His adventures could involve things like exploring forgotten parts of Hogwarts or helping out in magical creature reserves, all while having a bit of a flirtatious personality that is more about being friendly than anything else.
I'm not entirely sure specifically as 'puppy play' in fanfic can be a rather strange and perhaps not very common concept in the context of Harry Potter. It might be some sort of role - playing or AU (alternate universe) idea where characters take on puppy - like behaviors or characteristics in a fan - created story, but this is just speculation.
A bartender in a Harry Potter fanfic can play a really interesting role. They could be the keeper of secrets in a wizarding pub, like the Leaky Cauldron. They might overhear all kinds of gossip and important information from the various witches and wizards who come in for a drink. They could also be a source of magical items or potions that are not easily available elsewhere, sold under the table perhaps.
I'm not aware of any particularly popular 'harry potter puppy play fanfic' stories. This is a rather unusual concept and not something that is likely to be mainstream within the large and diverse Harry Potter fanfic community.
Candy often serves as a plot device in Harry Potter fanfics. It can be used to create magical situations. For instance, a character might accidentally eat a mislabeled candy that gives them an unexpected power for a short time.
In some Harry Potter fanfic, eggs could be used in potions. For example, they might be an ingredient for a magical elixir that gives the drinker a short - term boost of energy. Eggs could also be part of a magical creature's diet. Some fanfic might depict Hagrid using eggs to feed his various magical beasts like baby dragons or hippogriffs.
He could be a time - traveling character. Imagine Rhaegar from his own world ending up in the Harry Potter universe. He could be a key player in changing the course of certain events. For instance, if he has knowledge of a powerful dark magic that is starting to emerge in the Potter world, he might use his skills to counter it.
In some fanfics, the basilisk can be a source of great power for Harry. He might absorb some of its magic or gain a special ability after a close encounter with it.
They could be a source of power. If a character needs a powerful object or potion, the alchemist might be the one to create it. Maybe the alchemist has the ability to create a stone that can grant immortality, like the Philosopher's Stone, but with a different twist in the fanfic. This would attract the attention of both good and bad characters, leading to a complex web of events.