Love and sacrifice also play a big role. There could be a situation where Angelus has to make difficult choices to protect Buffy and the unborn child, or Buffy might have to sacrifice her slayer duties to some extent for the sake of the pregnancy. These themes of love, protection, and sacrifice are often central in such fanfictions.
Common themes include the duality of their natures. Buffy is a hero, and Angelus is a villain, yet they are drawn to each other. The theme of secrecy also pops up often. Their relationship can't be out in the open easily. Lust is a very obvious theme considering the 'lemon' nature of the fanfiction. But there are also themes of sacrifice, where either Buffy or Angelus might have to sacrifice something for the other or for the greater good in the context of their relationship.
One common theme is the struggle between good and evil, especially with Angel and Angelus. Since Angel has this dark side in him, a lot of fanfics explore how he tries to keep Angelus at bay while also being with Buffy. Another theme is love and sacrifice. Buffy often has to sacrifice her own feelings for the greater good when it comes to Angel and Angelus.
Popular themes often include redemption arcs. If Angelus were human, how would he seek redemption for all the wrong he did as a vampire? Also, love and friendship are big themes. Fans like to write about how Buffy and Angelus could have a more 'normal' love story as humans, or how their friendship could develop in a different way. There are also themes related to the challenges they face in a human world, like dealing with mortality, which is very different from their vampire - filled existence.
There are many fanfiction platforms out there, but finding the exact 'angelus and buffy pregnant fanfiction' can be a bit of a hunt. You might want to use the search function on these platforms and also look at related tags. Sometimes, other fans might have made collections or playlists of such fictions which could be easier to access if you can find them in the community forums or groups related to Buffy the Vampire Slayer.
One common theme is the struggle with their identities. Buffy is a slayer and Spike is a vampire, so having a baby challenges their usual roles. Another theme could be the reactions of their friends and enemies. Their friends might be shocked or supportive, while their enemies could see it as a weakness to exploit.
One common theme could be the struggle of dealing with the unexpected pregnancy. Given their complex relationship and the challenges they face in the Buffyverse, it adds an extra layer of drama. Another might be how their friends and allies react to the news.
One common theme could be the shock and adjustment. Given their relationship in the original series, the idea of them having a child is unexpected, so dealing with that shock is often explored. Another might be the protection of the unborn child, considering the dangerous world Buffy and Giles are a part of.
Well, often there's the theme of the unexpected. Given their lives filled with fighting demons and all, pregnancy might be a very unexpected turn. Also, there could be themes related to their insecurities. Riley might worry about being a good father considering his own past and Buffy might worry about protecting the baby from all the evils around. And of course, there could be themes about their relationship evolving in new ways because of the pregnancy.
One common theme is the struggle between Buffy's slayer duties and her new role as a mother - to - be. For example, in many fanfics, she has to figure out how to keep fighting evil while protecting her unborn child. Another theme is the reaction of her friends and family. They might be shocked, supportive, or even worried about how this will change Buffy and their group dynamic.
One possible plotline could be Buffy's friends rallying together to rescue her. They might use their unique skills, like Willow's magic, to track down Angelus and his lair.