In the fanfic, after the mission, Tenten could have been exposed to a unique chakra or a special artifact. This exposure somehow affects her body in a way that results in pregnancy. The story could revolve around her search for answers. She might go on a journey to find out what exactly happened to her. Along the way, she could encounter old friends and foes alike. And as she gets closer to the truth, she also has to deal with the physical and emotional changes that come with pregnancy in a world full of ninja battles and political intrigue.
It could be a new character introduced in the fanfic. Maybe a wandering ninja who was also on a similar mission and they teamed up. During their time together, they fell in love and he's the father.
One possible plot could be that Naruto, after becoming Hokage, realizes his true feelings for Tenten. They start to spend more time together during village rebuilding projects. Tenten, who has always admired Naruto's determination, begins to see him in a new light. Their relationship blossoms slowly as they face challenges together, like dealing with rogue ninja threats to the village. Eventually, they decide to get married in a grand ceremony with all their friends and the whole village celebrating.
Well, in this fanfiction, perhaps it could start with a mission where Naruto and Tenten are stranded alone. During this time, they have deep conversations and discover new sides of each other. Tenten has always been a strong and independent kunoichi, and Naruto is attracted to that. When they return to the village, they start dating secretly. As their relationship progresses, they have to deal with the public eye and the expectations of the village. Eventually, they get married in a simple but beautiful ceremony, surrounded by their closest friends.
One possible plot could be that it's an alternate universe where Naruto and Tenten end up together in a situation that leads to pregnancy. Maybe they were on a mission together and some strange magic or jutsu affected them, causing Tenten to become pregnant. They then have to deal with the reactions of their friends and the challenges of impending parenthood.
Perhaps it could focus on the father of the baby. If it's someone unexpected, like a character who has had little interaction with Tenten before, the story could be about how they come together to prepare for the baby. For example, if it was a civilian from the village, he might be in awe of Tenten's ninja skills and be a bit intimidated at first, but they gradually build a relationship as they get ready for the new arrival.
Maybe in the fanfic, they are on a mission together when Tenten realizes she's pregnant. This throws them off their game a bit as they now have to worry about the baby's safety too. They return to the village and Neji tells their friends, who are all excited and offer support. As Tenten's pregnancy progresses, they face some challenges like Tenten having morning sickness and Neji trying to balance his duties and taking care of her.
Well, it could be about Naruto going on a mission where he has to 'capture' Tenten for some reason. Maybe she's been influenced by an enemy jutsu and Naruto has to bring her back to the village. It could involve a lot of action scenes as Naruto tries to outwit Tenten's weapon skills.
One possible plot could be that Naruto, while on a mission near Tenten's training ground, accidentally disrupts her training. Tenten is initially angry but Naruto's charm and determination to make it up to her start to change her view of him. Over time, they start to train together and feelings develop.
Well, it could be about Naruto developing some new jutsu that involves melting substances and he uses it to protect Tenten in a creative way. Maybe during a battle, Naruto's new power creates a sort of protective coating around Tenten, which is made of the melted material. It could also be a story where Naruto accidentally discovers this ability while trying to save Tenten from a dangerous situation.
Well, it could be about Naruto developing a new jutsu that involves melting a special substance and using it to coat Tenten's weapons for added power in battle. Maybe Naruto discovers a unique chakra - based material that he can manipulate in this way, and Tenten is initially skeptical but then sees the great potential in it for her combat style.