One common theme is identity crisis. Harry has to deal with being the son of the most evil wizard. Another is power struggle. Since he's related to Voldemort, there are often plots about whether he'll inherit dark powers or not.
Well, there's the theme of redemption. Some fanfics have Harry trying to 'redeem' the Riddle name. There's also the theme of family secrets. The wizarding world is often in shock at this revelation and there are many secrets that start to surface. For example, how did this happen? Who was involved? And then there's the theme of loyalty. Harry has to decide who to be loyal to, his new family connection or his friends at Hogwarts.
In these fanfictions, a major theme is the exploration of nature versus nurture. Given that Harry is Voldemort's son, does he have an inborn inclination towards dark magic? Or will his upbringing and the love he received from his friends override his genetic predisposition? Another theme is the rewriting of relationships. His relationships with Snape, for instance, would be completely different as Snape had a complex relationship with Voldemort. Also, the power dynamics within Hogwarts would shift, creating new political and social themes in the fanfiction.
A prevalent theme is the struggle against the dark side. Given his father's history, he may constantly face the temptation of dark magic. He might also face prejudice from others who know his father's deeds. This could lead to a theme of isolation and his journey to overcome it, to prove that he is not like his father.
Love and obsession are also common. The idea of a female Harry being drawn to Tom Riddle's allure despite his dark side, or vice versa. It can be a complex love that is filled with moral dilemmas. Like in some stories, Harry might try to redeem Tom, which is a very emotional and complex theme.
A common theme is the battle between good and evil. Since Harry represents good and Tom Riddle represents evil, this is a natural focus. Their confrontations and the moral choices they make in the face of each other are often explored.
One common theme is redemption. Tom Riddle is often depicted as having a chance at redemption through his relationship with Harry. It shows that love and friendship can potentially change a person, even one as dark - minded as Tom.
The exploration of their complex relationship is also a major theme. They are often portrayed as enemies at first, but as the story progresses, a strange kind of attraction or respect might develop between them. This can involve themes of opposites attracting, like Harry's light - heartedness against Tom's brooding darkness.
One common theme is the battle between good and evil within the context of their relationship. Since Tom Riddle is the embodiment of evil as Voldemort, and Harry is the hero, it's often explored how Harry might influence Tom or vice versa.
One common theme is the exploration of good and evil. Since Tom Riddle becomes Voldemort, fanfictions often examine how Harry, as the symbol of good, could influence or be influenced by Tom. Another theme is the power of magic. Writers like to play with different magical concepts and how they might be used by Harry and Tom.
One common theme could be the exploration of the power dynamics between them. Given Tom Riddle's inclination towards power and Harry's role as his foil in the original story, this can be played out in interesting ways in lemon fanfiction.
Well, a frequent theme is the exploration of family. Harry has always been an orphan, and suddenly finding out he's Tom Riddle's son would completely redefine his understanding of family. There could also be themes related to the battle between good and evil within himself. Since he has the blood of a dark wizard, he may have to constantly fight against his darker instincts. Also, the theme of acceptance by the wizarding world could be present, as they may be hesitant to accept someone with such a dark heritage.
One common theme is the battle between good and evil. Since Harry represents good and Tom Riddle is the symbol of evil in the original series, fanfics often explore this dichotomy further. For example, how Harry tries to prevent Riddle from doing more harm.