Well, there are several common themes. Firstly, there's the theme of trust. Given the nature of their relationship in the show, trust is something that can be easily broken and rebuilt, and fanfictions often revolve around this. Another is the theme of sacrifice. They might be put in situations where they have to sacrifice something for the other. And the theme of family also pops up, as they both have their own ideas of what family means, and this can be explored in different ways in fanfiction. Some stories might also focus on the theme of redemption, especially for Tamsin, as she has had a rather complicated past.
Yes, there are quite a few. You can check out some fanfiction websites like Archive of Our Own. There you'll find a variety of stories exploring different aspects of their relationship, from friendship to something more romantic. Just search for 'lost girl tamsin and bo' on the site and browse through the results.
One more theme is self - discovery. Given Bo's journey to understand her true nature as a succubus and Tamsin's connection to her Valkyrie heritage, fanfictions often use their relationship as a backdrop for their individual self - discovery processes. For instance, they might learn from each other's experiences and grow as characters. It's a great way to see the characters develop in new and exciting ways outside of the show's canon.
One great place to start looking for 'Lost Girl' Bo and Tamsin fanfiction is Archive of Our Own (AO3). There are numerous stories there that explore their relationship in various ways, from deep friendship to potential romantic entanglements.
One common theme is redemption. Many fanfictions explore Tamsin's journey towards redeeming herself for past actions. Another is friendship, like how she forms bonds with other characters in the Lost Girl world.
One common theme could be family. The story might explore how Bo and Tamsin form a new family unit with the baby. Another could be protection, as they would need to protect the baby from any threats in their world.
One great Tamsin Lost Girl fanfiction is 'Tamsin's Redemption'. It delves deep into Tamsin's character, exploring her past and how she copes with her complex identity in the Lost Girl world. Another interesting one is 'Tamsin and the Forbidden Bond' which focuses on her relationships with other characters in a unique way.
A fanfiction might explore a day in the life of Bo, An, and Lauren as friends. They could go shopping together in the Fae world. Bo is excited about trying on different outfits, An is a bit more reserved but still enjoys the experience, and Lauren is fascinated by the unique Fae fashion. They then go for lunch and talk about their hopes and dreams. This simple day out strengthens their friendship as they get to know each other on a more personal level.
One common theme is self - discovery. Bo is constantly evolving in the original series, and fanfictions often continue this journey of her understanding her true self, her powers, and her place in the world.
I'm not sure about specific 'bo and tamsin baby fanfiction' as it depends on the particular fandom and source material. You could try searching on fanfiction - specific websites like Archive of Our Own or FanFiction.net. There might be some heartwarming stories there about Bo and Tamsin with a baby in the plot.