Splinter was once a normal rat. He was in the sewers when he came across some mutagen ooze. This ooze transformed him into a humanoid, intelligent rat. He then found the baby turtles, which had also been exposed to the mutagen. He trained them in the ways of ninjutsu, becoming their sensei and father figure, thus starting the Teenage Mutant Ninja Turtles' story.
There are various 'tmnt gay splinter fanfics' out there. Some might take a more modern and edgy approach, while others could be more traditional in their storytelling. One possible fanfic could start with Splinter noticing a change in one of the turtles' behavior towards him. This then leads to a series of events that slowly uncover a deeper, more romantic or at least very affectionate relationship. These fanfics often play with the idea of breaking the boundaries of the typical master - student relationship that is so central to the TMNT story and exploring new emotional terrains.
Since 'yiff' has inappropriate connotations, I can't provide a story related to it. However, if we consider TMNT in a general sense, the Teenage Mutant Ninja Turtles are about four brothers trained in ninjutsu, fighting against villains in New York City. And Splinter is their wise rat - sensei.
Well, first and foremost, Splinter's origin as a common sewer rat is a fundamental element. It sets the stage for his encounter with the mutagen ooze, which is the catalyst for his transformation. His new - found intelligence and human - like abilities after the mutation are also key. Additionally, his discovery of the baby turtles, which were also mutated, is significant. And his decision to use his ninjutsu knowledge to train them and shape them into the Teenage Mutant Ninja Turtles we know is an essential part of the origin story.
Fanfiction.net is also a great place to look. It has been around for a long time and has a vast number of fan - created stories. Just use the search function and type in relevant keywords like 'tmnt gay splinter' to see what comes up. However, the quality and content can vary widely, so you might need to do some sifting.
Maybe in this story, Gay Splinter has a secret past love. This love affair could have been with another mutant or a human. His memories of this relationship could affect how he raises the turtles. For example, he might be more protective of them in matters of the heart, teaching them about the importance of true love and being true to oneself. He could also be part of a story arc where he tries to find this lost love again.
Gay Splinter could influence the TMNT team in terms of their attitude towards acceptance. In a world where mutants already face so much prejudice, he could use his own experience of being different (due to his sexual orientation) to make the turtles more empathetic towards other outcasts. He might also inspire them to fight for equality not just for mutants but also for the LGBTQ+ community within their universe.
Sure. Let's say in this story, Splinter discovers that one of the Turtles is struggling with his identity. And with Splinter's wisdom and acceptance, he helps the Turtle understand that being different, in this case, being gay, is okay. The other Turtles also show their support and they all continue to fight crime together as a stronger, more inclusive team.
Another possible main character could be a character with a mysterious origin. This character's past might be gradually revealed throughout the story, adding an element of intrigue. He or she could have powers that are initially hard to understand or control, which creates internal conflict as well as external challenges when dealing with the enemies in the graphic novel.