One common theme is acceptance. The human has to accept the anthro's different nature, be it physical or cultural. Another is the struggle against society's norms. Since such relationships are often not the norm, the characters face opposition from their respective communities.
One common theme is self - discovery. When a human turns into an anthro Pokemon, they have to figure out who they are in this new form. For example, they might discover new abilities or instincts that they didn't have as a human.
Friendship is a very common theme. It often shows how humans and anthro pokemon can form deep bonds. Another is adventure, as they usually go on some kind of journey together.
One common theme could be the exploration of relationships between different species or forms, in this case, a human and an anthro. It might involve the challenges they face due to their differences.
One common theme could be friendship. It might explore how an anthro bear and a human form an unlikely bond, perhaps helping each other in a fictional world. For example, the anthro bear could use its strength to protect the human from danger, while the human uses their intelligence to solve problems for the bear.
One common theme is the exploration of the 'forbidden' nature of the relationship. Since it's between different species - like, an anthro and a human - there's often a sense of it being something that goes against the norm.
In these fanfictions, a very common theme is adaptation. The human who has become an anthro alicorn has to adapt to a whole new set of physical abilities, like flying and using magic. There's also the theme of cultural shock. Equestria has its own culture, and the new alicorn has to understand and adapt to it. Additionally, the theme of heroism often pops up. As they gain powers, they may be called upon to save Equestria or help its inhabitants, which is a big change from their human life.
There are indeed. For example, some werewolf - human romance novels fall into this category. The allure lies in the exploration of different cultures (the werewolf or anthro culture) and how it clashes and blends with human society in the context of love. The characters' struggle to accept their differences while being in love makes for an interesting read.
One common theme is the idea of acceptance. The male human has to accept the dragon anthro's different nature, like her powers and appearance. For example, in many stories, the human is initially afraid but then learns to embrace her dragon - like qualities.
One common theme is forbidden love. Since demons are often seen as different or dangerous in the context of human society, the relationship between a demon and a human is usually frowned upon. For example, in many stories, there are social or cultural barriers that the couple has to overcome.
Love against all odds is a big theme. In these novels, there are often many obstacles for the human - robot couple. It could be the laws of society that forbid such relationships, or the physical differences that seem insurmountable at first. Also, the exploration of what love really is. Is it just chemical reactions in the human brain, or can a robot's programmed emotions be considered as true love? These novels often make the reader think about the nature of love itself.