A simple scenario could be that a love potion is slipped into Hannibal's drink at a social gathering. He then starts to have strong feelings for someone he previously only had a professional relationship with. This changes the dynamics between them completely, leading to awkward and intense situations as they both try to figure out what's going on.
Obviously Merlin himself could be affected. He's the one with the magic and might accidentally expose himself to the potion. Arthur is also a likely candidate. As the king, if he's affected by the love potion, it would have a huge impact on Camelot. Morgana could also be a character affected. If she were under the influence of a love potion, it could change her plans and her relationships with other characters. And Guinevere too, since she has important relationships in Camelot that could be altered by the potion.
One common theme is chaos. The love potion usually causes a lot of disorder in the story. Another is the exploration of love. Since it's a love potion involved, different types of love, like unrequited love or sudden infatuation, are often explored. And of course, there's the theme of fixing the mess, as the characters usually have to find a way to deal with the disaster caused by the love potion.
The love potion can initially create a false sense of love. For example, if Draco is under the influence of a love potion for Harry, he might act overly affectionate, which could make Harry uncomfortable at first. But it could also be a catalyst for them to start interacting more, which might lead to a real relationship later.
Sonic might be really confused if he is under the effect of the love potion. He's always been independent and suddenly having strong romantic feelings for Amy would be a big change. He might try to fight the feeling at first because it's so alien to him.
Sheen is very likely to be affected. He's impulsive and would probably be one of the first to come into contact with the love potion. His over - the - top personality would make his actions under the influence of the potion really exaggerated, like falling in love with the most random things. Carl could also be affected. He's a bit of a follower, so if Sheen gets affected, Carl might follow suit without realizing it. And of course, Cindy. Since she and Jimmy have that sort of love - hate relationship, if she gets affected by the love potion, it could lead to some really interesting and comical situations between them.
It could also complicate their relationship. If they find out it was a love potion that made them feel this way, they might question whether their feelings are real or just the result of the potion. Naruto, being a straightforward person, might struggle with this idea. He wants to believe that his feelings for Hinata are genuine, but the existence of the potion makes him doubt.
Well, he might initially be confused. Since it's a love potion, he could start having strong, uncharacteristic feelings for Dravo. Maybe he becomes overly affectionate towards Dravo, not really understanding why these new emotions are surging within him.
A Hannigram fanfic involving a love potion could be really interesting. It might start with one of them, say Hannibal, coming across a mysterious love potion. He could be intrigued by its potential effects on Will. Maybe he uses it in a very subtle way, like adding it to a meal he prepares for Will. This could lead to some unexpected changes in their relationship, with Will feeling an intense and sudden attraction that he can't quite explain at first.
One idea could be that Hermione accidentally drinks a love potion meant for someone else. This could lead to all sorts of comical and chaotic situations as she starts acting out of character. For example, she might start chasing after a character she normally has no romantic interest in, like Crabbe or Goyle. It could also create a conflict if she's already in a relationship, say with Ron, and he has to figure out how to reverse the effects.