Well, it could be that Varys thought Dany was becoming too much like the tyrants she opposed. So he tried to take actions against her. Dany, being a powerful and often ruthless character in these stories, wouldn't tolerate such betrayal and thus killed Varys. For example, if Varys was spreading rumors about Dany's sanity or her ability to rule, Dany would see him as a direct threat to her claim to the Iron Throne.
Perhaps she tells fairy tales with magical creatures like unicorns and fairies. These tales could be about love and kindness, teaching important moral lessons.
Well, it depends on her skills and the passion she puts into it. If she is truly passionate about the stories she tells, she will pour her heart into it. She may use different voices for different characters, describe the settings in great detail, and build a connection with her audience. This would make her a very good storyteller. But if she lacks practice or enthusiasm, the stories might not be as well - told.
In some fanfictions, after killing Varys, Dany may start to question her own actions more. Varys was a complex character, and his death might make Dany realize the extent of her power and how easily she can take a life. This could lead to internal conflict within her. On the other hand, it could also make her more determined to achieve her goals. She may think that by eliminating threats like Varys, she is one step closer to the Iron Throne and ruling Westeros. But at the same time, she might lose some of the support she had from those who respected Varys or saw him as a necessary part of the political landscape.
There are fanfictions that focus on Varys' true motives. Maybe he wasn't just a power - hungry manipulator but had a grander plan for the realm, like trying to bring about a more democratic form of government in Westeros. In these fanfictions, he could be secretly training young minds to be future leaders who would break the cycle of war and tyranny.
Well, in A Dance with Dragons, Varys's story concludes in a rather unexpected and dramatic way. He's caught in the middle of power struggles and his actions catch up with him, leading to his demise.
There might be such a fanfic, but it's difficult to say for certain. Fanfic writers come up with all sorts of creative and often complex storylines. However, these specific elements of Daenerys being pregnant and Varys poisoning someone might be a rather unique and perhaps not overly common combination in the world of fanfics. It could be that a writer has explored this idea for the sake of creating a new and unexpected plot twist.
A great one is 'The True Varys'. It delves deep into Varys' past and his relationship with Illyrio Mopatis. It shows how they planned their moves long before the events of the main series, and how Varys' loyalty was always a bit of a mystery even to his closest allies.
One possible plot could be that Daenerys' pregnancy is a cause for political unrest. Varys, being poisoned, might have some knowledge about who is behind it. Maybe he was poisoned by someone who wants to use Daenerys' unborn child as a pawn in the power struggle. His death could then set off a chain of events where Daenerys has to fight even harder to protect her child and her claim to the throne, all while trying to figure out who killed Varys.
I'm not sure if there is a specific fanfic exactly about that. There are a vast number of 'Game of Thrones' fanfics out there, and while the themes of Daenerys' potential pregnancy and Varys' fate (including being poisoned in some storylines) are common elements, it would be difficult to say for certain without a more in - depth search. You could try searching on fanfic - specific websites like Archive of Our Own or FanFiction.net using relevant keywords.