What are some good Jack Harkness and crossover fanfiction stories?

I'm not really into mpreg fanfiction specifically, but you can try searching on Archive of Our Own (AO3). They have a vast collection of fanfics, and you can use the search filters to look for Jack Harkness stories with crossover elements. Just type in 'Jack Harkness' and then add'mpreg' and 'crossover' as additional keywords.

In Jack Harkness mpreg and crossover fanfiction, the 'mystery of the pregnancy' trope is quite popular. Given Jack's complex backstory and the nature of crossovers, the origin of the pregnancy can be a big mystery. It could be due to some alien influence from the crossover universe, or a strange time - travel related event. Also, the 'adaptation to new family dynamics' trope is often seen. Jack has to figure out how to be a parent in a new and often complex family structure created by the crossover. This can lead to a lot of emotional and interesting storylines.

One interesting Jack Harkness pregnant fanfiction could be where his pregnancy is a result of some alien encounter. Maybe an alien race has a unique way of reproduction and Jack, being the adventurous character he is, gets caught up in it. This type of story can explore how he deals with the physical and emotional changes, as well as how his friends react to this unexpected situation.

You can start by looking on fanfiction websites like Archive of Our Own (AO3). Just type in 'Jack Harkness crossover' in the search bar, and it will bring up a bunch of relevant stories. AO3 has a great tagging system which helps you narrow down your search based on different criteria like the other fandoms involved, the rating of the story, etc.

One great Jack Harkness OC fanfiction is 'The Adventures of Jack and His New Companion'. It has an interesting original character who teams up with Jack on various time - traveling escapades. The story is well - written and really captures the essence of the Doctor Who universe that Jack is from.

Well, if you like a bit of mystery in your fanfiction, look for ones where the reader has some sort of hidden power or past that Jack is intrigued by. For example, there's a fanfic where the reader is from a long - lost alien race and Jack is trying to figure out what that means for the universe and for their relationship. These types of stories add an extra layer of depth to the Captain Jack Harkness x Reader dynamic.

Well, Jack Harkness is a very charismatic character. When you add an OC to the mix, it creates opportunities for all kinds of relationships. It could be a romantic relationship, a friendship, or even a rivalry. These relationships can be explored in ways that are different from the established canon, which is really exciting. For example, an OC could be from a species that Jack has never encountered before, and their cultural differences could lead to some really interesting plot developments.

One great 'Jack Harkness x Reader Fanfiction' is 'A Chance Encounter'. It beautifully captures the charm of Jack and his interactions with the reader character. The story has a great plot that keeps you engaged from start to finish.

You can start by looking on Archive of Our Own (AO3). It has a large collection of fanfictions, and you can easily search for 'Jack Harkness x Doctor' there. Another place could be Fanfiction.net, although the interface might not be as user - friendly as AO3. There are also some Doctor Who - specific fanfiction forums where you might find some great works about Jack and the Doctor.

Well, 'Journey with Jack and the Doctor' is a fanfiction that stands out. It has an engaging plot that keeps you hooked from start to finish. Then there's 'Jack and the Doctor: Parallel Paths' which is interesting because it shows how their paths cross in unexpected ways. Also, 'The Meeting of Two Legends' is a great read as it focuses on the first encounter between Jack and the Doctor and how it sets the tone for their future relationship.