It's hard to say there are really 'popular' themes specifically for pregnant and orc LotR fanfiction as it's a rather niche combination. But perhaps a theme could be the challenges of an orc pregnancy in a world filled with war and danger like Middle - earth. Another could be the acceptance or rejection of a pregnant orc within orc society.
There may not be well - established 'popular' themes for this particular type of fanfiction. However, some potential themes could emerge. For example, the idea of an orc mother's struggle to protect her unborn in a hostile environment. Middle - earth is full of perils, and an orc mother would face unique challenges. Also, the concept of how orcish culture views pregnancy and motherhood. Is it something that is celebrated or shunned? And then there could be the theme of how the pregnancy might be a catalyst for change within the orc community, whether it's a change in their values or their way of life.
I'm not sure about specific fanfictions that are both about pregnancy and orcs in the Lord of the Rings. You could try searching on fanfiction - dedicated websites like Archive of Our Own. They have a large collection and you might be able to find something there by using relevant tags.
One popular Lotr Orc fanfic might be those that explore the unique cultures within the orc tribes in Middle - earth. However, 'lemon' usually implies some form of sexual content which is not appropriate in many contexts, so I'll focus on non - sexual orc - related fanfics. Some fanfics might focus on an orc's journey to redemption, or their role in battles from a different perspective than the original books. For example, a fanfic could be about an orc who tries to break free from the dark influence of Sauron.
Another theme is acceptance. The orc community might have to accept a non - orc female carrying an orc baby, and vice versa. In many stories, the process of the orc father coming to terms with his new role as a father is explored. It can be a complex journey filled with misunderstandings and growth.
Often, they are portrayed as outcasts. Since neither humans nor orcs fully accept them, they are left to fend for themselves. This makes them into very independent characters with a lot of internal conflict.
One popular theme is the crossover of characters. For example, imagining Frodo and Harry Potter meeting and how they would interact given their different yet equally challenging quests. Another theme is exploring different character backstories that were not fully delved into in the original works, like the early years of Severus Snape in Harry Potter or the family history of Aragorn in LOTR. Also, alternative endings are quite common, such as what if Voldemort won in Harry Potter or if Sauron had regained the One Ring in LOTR.
One popular theme is the unlikely friendship between an orc and a human. They might overcome cultural and racial differences to become comrades. Another theme could be a romantic relationship. It often involves exploring the challenges of two different species falling in love, like dealing with the disapproval of their respective communities. And a third theme could be adventure, where an orc and a human team up to embark on a dangerous quest.
One possible theme could be family. With the pregnancy during Christmas, it might focus on the idea of starting a new family or expanding an existing one during the festive season.
A common theme could be the struggle between his normal self and his Hulk side during the pregnancy. He has to manage his emotions and powers carefully.
One interesting storyline could be a half - human, half - orc character struggling to find their place in Middle - earth. They might be shunned by both humans and orcs, and have to embark on a journey of self - discovery. For example, they could try to prove that they are not defined by their mixed heritage and can be a force for good.
I'm not sure if there are extremely popular mainstream 'gay orc stories' in the general sense. However, in some niche areas of fantasy literature or certain online fan - created content, there might be some stories like this.